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Author Gershenzon, E. M.; Orlova, S. L.; Orlov, L. A.; Ptitsina, N. G.; Rabinovich, R. I. url  openurl
  Title Intervalley cyclotron-impurity resonance of electrons in n-Ge Type Journal Article
  Year 1976 Publication JETP Lett. Abbreviated Journal JETP Lett.  
  Volume 24 Issue (up) 3 Pages 125-128  
  Keywords n-Ge, cyclotron-impurity resonance  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1730  
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Author Gershenzon, E. M.; Gol'tsman, G.; Ptitsina, N. G. url  openurl
  Title Energy spectrum of free excitons in germanium Type Journal Article
  Year 1973 Publication JETP Lett. Abbreviated Journal JETP Lett.  
  Volume 18 Issue (up) 3 Pages 93  
  Keywords Ge, free excitons, energy spectrum  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
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  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1734  
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Author Antipov, S. V.; Svechnikov, S. I.; Smirnov, K. V.; Vakhtomin, Y. B.; Finkel, M. I.; Goltsman, G. N.; Gershenzon, E. M. url  openurl
  Title Noise temperature of quasioptical NbN hot electron bolometer mixers at 900 GHz Type Journal Article
  Year 2001 Publication Physics of Vibrations Abbreviated Journal Physics of Vibrations  
  Volume 9 Issue (up) 4 Pages 242-245  
  Keywords NbN HEB mixers  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1069-1227 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1550  
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Author Gol'tsman, G. N.; Goghidze, I. G.; Kouminov, P. B.; Karasik, B. S.; Semenov, A. D.; Gershenzon, E. M. url  doi
openurl 
  Title Influence of grain boundary weak links on the nonequilibrium response of YBaCuO thin films to short laser pulses Type Journal Article
  Year 1994 Publication J. Supercond. Abbreviated Journal J. Supercond.  
  Volume 7 Issue (up) 4 Pages 751-755  
  Keywords YBCO HTS detector, nonequilibrium response  
  Abstract The transient voltage response in both epitaxial and granular YBaCuO thin films to 80 ps pulses of YAG∶Nd laser radiation of wavelength 0.63 and 1.54 μm was studied. In the normal and resistive states both types of films demonstrate two components: a nonequilibrium picosecond component and a bolometric nanosecond one. The normalized amplitudes are almost the same for all films. In the superconducting state we observed a kinetic inductive response and two-component shape after integration. The normalized amplitude of the response in granular films is up to five orders of magnitude larger than in epitaxial films. We interpret the nonequilibrium response in terms of a suppression of the order parameter by the excess of quasiparticles followed by the change of resistance in the normal and resistive states or kinetic inductance in the superconducting state. The sharp rise of inductive response in granular films is explained both by a diminishing of the cross section for current percolation through the disordered network of Josephson weak links and by a decrease of condensate density in neighboring regions.  
  Address  
  Corporate Author Thesis  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0896-1107 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1636  
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Author Gershenzon, E. M.; Gol'tsman, G. N.; Semenov, A. D.; Sergeev, A. V. url  doi
openurl 
  Title Mechanism of picosecond response of granular YBaCuO films to electromagnetic radiation Type Journal Article
  Year 1990 Publication Solid State Communications Abbreviated Journal Solid State Communications  
  Volume 76 Issue (up) 4 Pages 493-497  
  Keywords YBCO HTS detectors  
  Abstract The ultrafast mechanisms of radiation detection in granular YBaCuO films are studied in the wide wavelength range from millimeter to near infrared. With the rise of radiation frequency the Josephson detection at the grain boundary weak links is replaced by electron heating into the grains. This change occurs in the submillimeter wavelength range. Electron-phonon relaxation time τeph is determined by direct measurements and analyses quasistationary electron heating. Temperature dependence of τeph at T ≤ 40 K was found to be τeph ∼ T−1. The results show that detectors with the response time of few picoseconds at nitrogen temperature are attainable.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0038-1098 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1685  
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Author Gershenzon, E. M.; Gol'tsman, G. N.; Mirskii, G. I. url  openurl
  Title Submillimeter backward-wave-tube spectrometer-relaxometer Type Journal Article
  Year 1987 Publication Pribory i Tekhnika Eksperimenta Abbreviated Journal Pribory i Tekhnika Eksperimenta  
  Volume 30 Issue (up) 4 Pages 131-137  
  Keywords BWO, applications  
  Abstract A backward-wave-tube (BWT) spectrometer-relaxometer is described that is designed for study of the relaxation characteristics of photoconductors in the wavelength range of 2-0.25 mm – in particular, to measure the relaxation times of the submillimeter photoconductivity of germanium in the range of 10[sup:-4]-10[sup:-9] sec and to determine from these data the concentration of compensating impurities of from 10[sup:10] to 10[sup:14] cm[sup:-3]. The instrument uses the beats of the oscillations of two BWTs and records the amplitude-frequency response of the specimen with variation of the beat frequency from 10[sup:4] to 10[sup:8] Hz with accumulation of the desired signal for less than or equal to1 sec by means of a quadrature synchronous detector. The beat frequency is stabilized and the quadrature voltages of the synchronous detector are formed by means of phase-locked loops.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Russian Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1699  
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Author Gershenzon, E. M.; Gol'tsman, G. N.; Ptitsina, N. G.; Riger, E. R. url  openurl
  Title Effect of electron-electron collisions on the trapping of free carriers by shallow impurity centers in germanium Type Journal Article
  Year 1986 Publication Sov. Phys. JETP Abbreviated Journal Sov. Phys. JETP  
  Volume 64 Issue (up) 4 Pages 889-897  
  Keywords Ge, trapping of free carriers  
  Abstract Cascade Auger recombination of free carriers on shallow impurities in Ge is investigated under quasi-equilibrium conditions (T= 2-12 K) and in impurity breakdown. The Auger capture cross sections are found to be a,= 5. 10-l9 T-'n cm2 for donors and uip= 7- T-5p cm2 for acceptors. It is shown that in an isotropic semiconductor (p-Ge) ui is well described by the cascade-capture theory that takes into account only electron-electron collisions. In an anisotropic semiconductor ui is considerably larger (n-Ge, strongly uniaxially compressedp-Ge). Under impurity breakdown conditions the electron-electron collisions determine the lifetimes of the free carriers only in samples with appreciable density of the compensating impurity (Nk loi3 cmP3).  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
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  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1707  
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Author Gershenzon, E. M.; Gol'tsman, G. N.; Ptitsina, N. G. url  openurl
  Title Observation of the free-exciton spectrum at submillimeter wavelengths Type Journal Article
  Year 1972 Publication JETP Lett. Abbreviated Journal JETP Lett.  
  Volume 16 Issue (up) 4 Pages 161-162  
  Keywords Ge, energy spectrum, free excitons  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1736  
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Author Gershenzon, E. M.; Goltsman, G. N.; Multanovskii, V. V.; Ptitsina, N. G. url  openurl
  Title Kinetics of submillimeter impurity and exciton photoconduction in Ge Type Journal Article
  Year 1982 Publication Optics and Spectroscopy Abbreviated Journal Optics and Spectroscopy  
  Volume 52 Issue (up) 4 Pages 454-455  
  Keywords Ge, exciton photoconduction  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1715  
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Author Gershenzon, E. M.; Gol'tsman, G. N.; Multanovskii, V. V.; Ptitsyna, N. G. url  openurl
  Title Capture of photoexcited carriers by shallow impurity centers in germanium Type Journal Article
  Year 1979 Publication Sov. Phys. JETP Abbreviated Journal Sov. Phys. JETP  
  Volume 50 Issue (up) 4 Pages 728-734  
  Keywords Ge, photoexcited carriers, shallow impurity centers  
  Abstract Measurements were made of the lifetimes rf of free carriers and the relaxation time 7, of the submillimeter impurity photoconductivity when carriers are captured by attracting shallow donors and acceptom in Ge. It is nod that in samples with capture-center concentration N,Z 10"cm-' the relaxation time 7, greatly exceeds rf in the temperature range 4.2-12 K. The measured values of 7,- are compared with the calculation of cascade recombination by the classical model. To evaluate the data on T,, the distinguishing features of this model are considered for the nonstationary case. The substantial difference betweea the values of rf and T, is attributed to re-emission of the carriers from the excited states of the shallow impurities.  
  Address  
  Corporate Author Thesis  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
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  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1720  
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Author Gershenzon, E. M.; Gol'tsman, G. N.; Kagane, M. L. url  openurl
  Title Observation of free carrier resonances in p-type germanium at submillimeter wavelengths Type Journal Article
  Year 1978 Publication Sov. Phys. Solid State Abbreviated Journal Sov. Phys. Solid State  
  Volume 20 Issue (up) 4 Pages 573-579  
  Keywords p-Ge, free carriers, resonances  
  Abstract The spectrum of hole resonances in pure p-Ge for submillimetre in quantizing magnetic fields has been studied and identified. Measurements of photoconductivity spectra of p-Ge were made in the wave range lambda = 2-0.3 mm at temp. of 4.2-15 deg K in magnetic fields H up to 40 Measurements at various frequencies showed that the position of a series of characteristic resonances depends on the frequency of the illumination. This is in line with theoretical conclusions about the effective mass of the carriers increasing with rise in the magnetic field as a result of the interaction of the edge of the valency band with the split spin-orbital interaction of the sub 7 exp + band and the conduction band. The relative intensity of the quantum resonance lines of the free holes depends on the excitation conditions.  
  Address  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1721  
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Author Gershenzon, E. M.; Gol'tsman, G. N.; Kagane, M. L. url  openurl
  Title Energy spectrum of acceptors in germanium and its response to a magnetic field Type Journal Article
  Year 1977 Publication Sov. Phys. JETP Abbreviated Journal Sov. Phys. JETP  
  Volume 45 Issue (up) 4 Pages 769-776  
  Keywords p-Ge, photoconductivity, energy spectrum, magnetic field  
  Abstract We investigated the spectrum of the submillimeter photoconductivity of p-Ge at helium temperatures and the effects of a magnetic field up to 40 kOe on the spectrum. A large number of lines of transitions between the excited states of the acceptors was observed, some of the lines were identified, and the energies of a number of spectral levels B, Al, Ga, In, and TI in Ge were identified. The results are compared with calculations and with experimental data obtained from the spectra of the photoexcitation of the ground state of the impurities. Using one transition as an example, we discuss the splitting of the excited states of acceptors in the magnetic field and under uniaxial compression.  
  Address  
  Corporate Author Thesis  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
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  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1727  
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Author Gershenzon, E. M.; Orlov, L. A.; Ptitsina, N. G. url  openurl
  Title Absorption spectra in electron transitions between excited states of impurities in germanium Type Journal Article
  Year 1975 Publication JETP Lett. Abbreviated Journal JETP Lett.  
  Volume 22 Issue (up) 4 Pages 95-97  
  Keywords Ge, impurities, excited states, absorption spectra  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1773  
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Author Ptitsina, N. G.; Chulkova, G. M.; Gershenzon, E. M. openurl 
  Title Influence of the interference of electron-phonon and electron-impurity scattering on the conductivity of unordered Nb films Type Journal Article
  Year 1995 Publication JETP Abbreviated Journal JETP  
  Volume 80 Issue (up) 5 Pages 960-964  
  Keywords  
  Abstract The temperature dependence of the resistivity of Nb thin films has been studied at T=4.2-300 K. It has been shown that quantum interference between electron-phonon and electron-impurity scattering determines the temperature dependence of the resistivity of the films investigated over a broad temperature range. The magnitude of the contribution of the electron-phonon-impurity,interference is described satisfactorily by the theory developed by Reizer and Sergeev {Zh. Eksp. Teor. Fiz. 92,2291 (1987) [Sov. Phys. JETP 65, 1291 (1987)l). The interaction constants of electrons with longitudinal and transverse phonons in Nb films have been determined for the first time by comparing the experimental data with the theory. The values of the constants obtained are consistent with the data on the inelastic electron-phonon scattering times in the films investigated. The contribution of the transverse phonons is dominant both in the interference correction to the resistivity and in the electron energy relaxation.  
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  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number RPLAB @ phisix @ Serial 989  
Permanent link to this record
 
 
Author Verevkin, A. A.; Ptitsina, N. G.; Smirnov, K. V.; Gol’tsman, G. N.; Gershenzon, E. M.; Ingvesson, K. S. url  doi
openurl 
  Title Direct measurements of energy relaxation times on an AlGaAs/GaAs heterointerface in the range 4.2–50 K Type Journal Article
  Year 1996 Publication JETP Lett. Abbreviated Journal JETP Lett.  
  Volume 64 Issue (up) 5 Pages 404-409  
  Keywords 2DEG, AlGaAs/GaAs heterostructures  
  Abstract The temperature dependence of the energy relaxation time τe (T) of a two-dimensional electron gas at an AlGaAs/GaAs heterointerface is measured under quasiequilibrium conditions in the region of the transition from scattering by acoustic phonons to scattering with the participation of optical phonons. The temperature interval of constant τe, where scattering by the deformation potential predominates, is determined. In the preceding, low-temperature region, where piezoacoustic and deformation-potential-induced scattering processes coexist, τ e decreases slowly with increasing temperature. Optical phonons start to participate in the scattering processes at T∼25 K (the characteristic phonon lifetime was equal to τLOτ4.5 ps). The energy losses calculated from the τe data in a model with an effective nonequilibrium electron temperature agree with the published data obtained under strong heating conditions.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0021-3640 ISBN Medium  
  Area Expedition Conference  
  Notes http://jetpletters.ru/ps/981/article_14955.shtml (“Прямые измерения времен энергетической релаксации на гетерогранице AlGaAs/GaAs в диапазоне 4.2 – 50 К”) Approved no  
  Call Number Serial 1608  
Permanent link to this record
 
 
Author Boyarskii, D. A.; Gershenzon, V. E.; Gershenzon, E. M.; Gol'tsman, G. N.; Ptitsina, N. G.; Tikhonov, V. V.; Chulkova, G. M. url  openurl
  Title On the possibility of determining the microstructural parameters of an oil-bearing layer from radiophysical measurement data Type Journal Article
  Year 1996 Publication J. of Communications Technology and Electronics Abbreviated Journal J. of Communications Technology and Electronics  
  Volume 41 Issue (up) 5 Pages 408-414  
  Keywords submillimeter waves, transmission  
  Abstract A method for the reconstruction of microstructural properties of an oil-bearing rock from the spectral dependence of the transmission factor of submillimeter waves is proposed.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1064-2269 ISBN Medium  
  Area Expedition Conference  
  Notes Радиотехника и электроника 41, no. 4 (1996): 441-447 Approved no  
  Call Number Serial 1611  
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Author Danerud, M.; Winkler, D.; Lindgren, M.; Zorin, M.; Trifonov, V.; Karasik, B.; Gershenzon, E. M.; Gol'tsman, G. N. url  doi
openurl 
  Title A fast infrared detector based on patterned YBCO thin film Type Journal Article
  Year 1994 Publication Supercond. Sci. Technol. Abbreviated Journal Supercond. Sci. Technol.  
  Volume 7 Issue (up) 5 Pages 321-323  
  Keywords YBCO HTS detector  
  Abstract Detectors for infrared radiation ( lambda =0.85 mu m) were made of 50 nm thick YBa2Cu3O7- delta films on LaAlO3 and MgO or 60 nm thick films on NdGaO3. Parallel strips (1 mu m wide by 20 mu m long) were patterned in the films and formed the active device. These devices were designed to detect short infrared laser pulses by electron heating. The detectors were current biased into the resistive and the normal states. The response was studied in direct pulse measurements as well as by amplitude modulation of a laser. The pulse measurements showed a fast picosecond response followed by a slower decay related to phonon escape through the film-substrate interface and heat diffusion in the substrate. The frequency spectra up to 10 GHz showed two slopes with a knee corresponding to the phonon escape time.  
  Address  
  Corporate Author Thesis  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0953-2048 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1646  
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Author Semenov, A. D.; Goghidze, I. G.; Gol’tsman, G. N.; Sergeev, A. V.; Gershenzon, E. M. url  doi
openurl 
  Title Evidence for the spectral dependence of nonequilibrium picosecond photoresponse of YBaCuO thin films Type Journal Article
  Year 1993 Publication Appl. Phys. Lett. Abbreviated Journal Appl. Phys. Lett.  
  Volume 63 Issue (up) 5 Pages 681-683  
  Keywords YBCO HTS detectors, nonequilibrium  
  Abstract The transient voltage photoresponse of current biased YBaCuO thin films to 20 ps laser pulses of 0.63 and 1.54 μm wavelengths is measured for temperatures around the superconducting transition region. The fast picosecond decay of the response is followed by a slow nanosecond relaxation which is associated with the bolometric effect. The magnitude of the fast component of the response varies in proportion to the square root of wavelength that plausibly reflects multiplication processes of photoexcited electrons via electron–electron scattering and interaction with high energy phonons.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0003-6951 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1655  
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Author Voronov, B. M.; Gershenzon, E. M.; Gol'tsman, G. N.; Gogidze, I. G.; Gusev, Yu. P.; Zorin, M. A.; Sejdman, L. A.; Semenov, A. D. url  openurl
  Title Picosecond range detector base on superconducting niobium nitride film sensitive to radiation in spectral range from millimeter waves up to visible light Type Journal Article
  Year 1992 Publication Sverkhprovodimost': Fizika, Khimiya, Tekhnika Abbreviated Journal Sverkhprovodimost': Fizika, Khimiya, Tekhnika  
  Volume 5 Issue (up) 5 Pages 955-960  
  Keywords NbN HEB detectors  
  Abstract Fast-operating picosecond detector of electromagnetical radiation is developed on the basis of fine superconducting film of niobium nitride with high sensitivity within spectral range from millimetric waves up to visible light. Detector sensitive element represents structure covering narrow parallel strips with micron sizes included in the rupture of microstrip line. Detecting ability of the detector and time constant measured using amplitude-simulated radiation of reverse wave tubes and pulse radiation of picosecond gas and solid-body lasers, constitute D*≅1010 W-1·cm·Hz-1/2 and τ≤5 ps respectively, at 10 K temperature. The expected value of time constant of the detector at 10 K obtained via extrapolation of directly measured dependence that is, τ ∝ τ-1, constitutes 20 ps. Experimental data demonstrate that detection mechanism is linked with electron heating effect.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Russian Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0131-5366 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1670  
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Author Varyukhin, S. V.; Zakharov, A. A.; Gershenzon, E. M.; Gol'tsman, G. N.; Ptitsina, N. G.; Chulkova, G. M. url  openurl
  Title Low energy excitation in La2CuO4 Type Journal Article
  Year 1990 Publication Sverkhprovodimost': Fizika, Khimiya, Tekhnika Abbreviated Journal Sverkhprovodimost': Fizika, Khimiya, Tekhnika  
  Volume 3 Issue (up) 5 Pages 832-837  
  Keywords metal-dielectric-La2CuO4, monocrystals  
  Abstract Measurements of transmission and photoconductivity spectra in submillimeter wave length range as well as of capacity C and conductivity G in the region of acoustic frequencies of metal-dielectric-La2CuO4 system at low temperatures are performed using La2CuO4 monocrystals. Optical spectra posses a threshold character, a sharp decrease of transmission and photocoductivity signal occurs in the energy region hν>1.5 MeV. C(ω,T) and G(ω, T) dependences have a universal form typical of Debye type relaxation processes. Relaxation time dependence is of thermoactivated character τ(T)∼exp(ξ/T) with the gap value ξ≅2 meV. It is assumed that excitations with characteristic energy of ∼2 meV exist in La2CuO4. A possible nature of the detected low-energy excitations is discussed.  
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  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1688  
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Author Aksaev, E. E.; Gershenzon, E. M.; Gol'tsman, G. N.; Semenov, A. D.; Sergeev, A. V. url  openurl
  Title Interaction of electrons with thermal phonons in YBa2Cu3O7-δ films at low temperatures Type Journal Article
  Year 1989 Publication JETP Lett. Abbreviated Journal JETP Lett.  
  Volume 50 Issue (up) 5 Pages 283-286  
  Keywords YBCO HTS films  
  Abstract The time of electron-phonon interaction tau(eph) in YBaCuO films at low temperatures is studied. This is measured as the time of resistance relaxation in the resistive state of the superconducter, and is also determined from the increase in resistance under the action of radiation. Consistent results of these methods show that resistance relaxation in the resistive state is caused by cooling of the electron subsystem with respect to the phonon subsystem. The time tau(eph) is found to be inversely proportional to the temperature and comes to 80 ps when T = 1.6 K and 5 ps when T = 30 K. 6 refs.  
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  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1690  
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Author Gershenzon, E. M.; Gol'tsman, G. N.; Karasik, B. S.; Semenov, A. D. url  openurl
  Title Measurement of the energy gap in the compound YBaCu3O9-δ on the basis of the IR absorption spectrum Type Journal Article
  Year 1987 Publication JETP Lett. Abbreviated Journal JETP Lett.  
  Volume 46 Issue (up) 5 Pages 237-238  
  Keywords YBCO HTS detectors  
  Abstract For the first time the long-wave infrared absorption spectrum has been measured by means of the bolometric effect and energy gap for high-temperature superconducting ceramics YBa/sub 2/Cu/sub 3/O/sub 9-delta/ has been determined from absorption threshold. 2delta/kT/sub c/ value is equal to 0.6.  
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  Corporate Author Thesis  
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  Series Editor Series Title Abbreviated Series Title  
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  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1703  
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Author Gershenzon, E. M.; Gol'tsman, G. N.; Semenov, A. D. url  openurl
  Title Submillimeter backward wave tube spectrometer for measuring superconducting film transmission Type Journal Article
  Year 1983 Publication Pribory i Tekhnika Eksperimenta Abbreviated Journal Pribory i Tekhnika Eksperimenta  
  Volume 26 Issue (up) 5 Pages 134-137  
  Keywords BWO spectroscopy, spectrometer, transmission  
  Abstract A spectrometer employing six backward wave tubes is described. It is intended for investigation of superconductors in the 0.2-3 mm range of wave lengths. During the measurement of the transmission spectrum it is possible to determine the energy gap for superconduct1ng films 50 to 4000 A thick. The transmission factor can vary from 10-1 to 10-9. Spectrum of relation of film transmission factors in superconducting and normal states is measured for determining the energy gap 2 Δ. The transmission spectrum obtained by means of a computer for vanadium film 300 A thick is given as an example. The energy gap 2 Δ = 1.4 MeV  
  Address  
  Corporate Author Thesis  
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  Language Russian Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0032-8162 ISBN Medium  
  Area Expedition Conference  
  Notes Субмиллиметровый спектрометр с лампами обратной волны для измерения пропускания сверхпроводниковых пленок Approved no  
  Call Number Serial 1713  
Permanent link to this record
 
 
Author Gershenzon, E. M.; Gol'tsman, G. N.; Mel'nikov, A. P. url  openurl
  Title Binding energy of a carrier with a neutral impurity atom in germanium and in silicon Type Journal Article
  Year 1971 Publication JETP Lett. Abbreviated Journal JETP Lett.  
  Volume 14 Issue (up) 5 Pages 185-186  
  Keywords Ge, Si, neutral impurity atom, binding energy  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1739  
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Author Men’shchikov, E. M.; Gogidze, I. G.; Sergeev, A. V.; Elant’ev, A. I.; Kuminov, P. B.; Gol’tsman, G. N.; Gershenzon, E. M. url  doi
openurl 
  Title Superconducting fast detector based on the nonequilibrium inductance response of a film of niobium nitride Type Journal Article
  Year 1997 Publication Tech. Phys. Lett. Abbreviated Journal Tech. Phys. Lett.  
  Volume 23 Issue (up) 6 Pages 486-488  
  Keywords NbN KID  
  Abstract A new type of fast detector is proposed, whose operation is based on the variation of the kinetic inductance of a superconducting film caused by nonequilibrium quasiparticles created by the electromagnetic radiation. The speed of the detector is determined by the rate of multiplication of photo-excited quasiparticles, and is nearly independent of the temperature, being less than 1 ps for NbN. Models based on the Owen-Scalapino scheme give a good description of the experimentally determined dependence of the power-voltage sensitivity of the detector on the modulation frequency. The lifetime of the quasiparticles is determined, and it is shown that the reabsorption of nonequilibrium phonons by the condensate has a substantial effect even in ultrathin NbN films 5 nm thick, and results in the maximum possible quantum yield. A low concentration of equilibrium quasiparticles and a high quantum yield result in a detectivity D*=1012 W−1·Hz1/2 at a temperature T=4.2 K and D*=1016 W−1·cm· Hz1/2 at T=1.6 K.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1063-7850 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1593  
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Author Voronov, B. M.; Gershenzon, E. M.; Gol'tsman, G. N.; Gubkina, T. O.; Semash, V. D. url  openurl
  Title Superconductive properties of ultrathin NbN films on different substrates Type Journal Article
  Year 1994 Publication Sverkhprovodimost': Fizika, Khimiya, Tekhnika Abbreviated Journal Sverkhprovodimost': Fizika, Khimiya, Tekhnika  
  Volume 7 Issue (up) 6 Pages 1097-1102  
  Keywords NbN films  
  Abstract A study was made on dependence of surface resistance, critical temperature and width of superconducting transition on application temperature and thickness of NbN films, which varied within the range of 3-10 nm. Plates of sapphire, fused and monocrystalline quartz, MgO, as well as Si and silicon oxide were used as substrates. NbN films with 160 μθ·cm specific resistance and 16.5 K (Tc) critical temperature were obtained on sapphire substrates. Intensive growth of ΔTc was noted for films, applied on fused quartz, with increase of precipitation temperature. This is explained by occurrence of high tensile stresses in NbN films, caused by sufficient difference of thermal coefficients of expansion of NbN and quartz.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Russian Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0131-5366 ISBN Medium  
  Area Expedition Conference  
  Notes Сверхпроводниковые свойства ультратонких пленок NbN на различных подложках Approved no  
  Call Number Serial 1631  
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Author Gershenzon, E. M.; Gol'tsman, G. N.; Karasik, B. S.; Lugovaya, G. Ya.; Serebryakova, N. A.; Chinkova, E. V. url  openurl
  Title Infrared radiation detectors on the base of electron heating in resistive state films from traditional superconducing materials Type Journal Article
  Year 1992 Publication Sverkhprovodimost': Fizika, Khimiya, Tekhnika Abbreviated Journal Sverkhprovodimost': Fizika, Khimiya, Tekhnika  
  Volume 5 Issue (up) 6 Pages 1129-1140  
  Keywords IR HEB detectors  
  Abstract Characteristics of infrared radiation detectors based on electron heating in thin superconducting films transformed at T ≤ Tc to a resistive state by transport current and, if necessary, by magnetic field are investigated. A comparison is made of the characteristics of the detectors fabricated of different materials: aluminium, niobium, Mo0.5Re0.5. Some devices with different topology of the reception area are considered. Electron heating detectors are comparable by their sensitivity with superconducting bolometers, but differ in a high fast-response.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Russian Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0131-5366 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1673  
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Author Gershenzon, E. M.; Gershenzon, M. E.; Gol'tsman, G. N.; Karasik, B. S.; Semenov, A. D.; Sergeev, A. V. url  openurl
  Title Light-induced heating of electrons and the time of the inelastic electron-phonon scattering in the YBaCuO compound Type Journal Article
  Year 1987 Publication JETP Lett. Abbreviated Journal JETP Lett.  
  Volume 46 Issue (up) 6 Pages 285-287  
  Keywords YBCO HTS HEB  
  Abstract For the first time, measurements have been made on the electron energy relaxation time due to the electron--phonon interaction in films of the YBaCuO superconductor. The results indicate a significant intensification of the electron--phonon interaction in this compound as compared with normal superconducting metals.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1706  
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Author Blagosklonskaya, L. E.; Gershenzon, E. M.; Goltsman, G. N.; Elantev, A. I. url  openurl
  Title Effect of strong magnetic-field on spectrum of hydrogen-like admixtures in semiconductors Type Conference Article
  Year 1978 Publication Izv. Akad. Nauk SSSR, Seriya Fizicheskaya Abbreviated Journal Izv. Akad. Nauk SSSR, Seriya Fizicheskaya  
  Volume 42 Issue (up) 6 Pages 1231-1234  
  Keywords spectrum, semiconductors, admixtures, strong magnetic-field  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Mezhdunarodnaya Kniga 39 Dimitrova Ul., 113095 Moscow, Russia Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number blagosklonskaya1978effect Serial 1724  
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Author Gershenzon, E. M.; Gol'tsman, G. N.; Emtsev, V. V.; Mashovets, T. V.; Ptitsyna, N. G.; Ryvkin, S. M. url  openurl
  Title Role of impurities of groups III and V in the formation of defects following γ irradiation of germanium Type Journal Article
  Year 1971 Publication JETP Lett. Abbreviated Journal JETP Lett.  
  Volume 14 Issue (up) 6 Pages 241  
  Keywords Ge, gamma irradiation, defects, impurities  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1742  
Permanent link to this record
 
 
Author Gershenzon, E. M.; Gol'tsman, G. N.; Elantiev, A. I.; Karasik, B. S.; Potoskuev, S. E. url  openurl
  Title Intense electromagnetic radiation heating of electrons of a superconductor in the resistive state Type Journal Article
  Year 1988 Publication Sov. J. Low Temp. Phys. Abbreviated Journal Sov. J. Low Temp. Phys.  
  Volume 14 Issue (up) 7 Pages 414-420  
  Keywords HEB  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Duplicated as 1697 Approved no  
  Call Number Serial 236  
Permanent link to this record
 
 
Author Gousev, Yu. P.; Gol'tsman, G. N.; Semenov, A. D.; Gershenzon, E. M.; Nebosis, R. S.; Heusinger, M. A.; Renk, K. F. doi  openurl
  Title Broadband ultrafast superconducting NbN detector for electromagnetic radiation Type Journal Article
  Year 1994 Publication J. Appl. Phys. Abbreviated Journal J. Appl. Phys.  
  Volume 75 Issue (up) 7 Pages 3695-3697  
  Keywords NbN HEB  
  Abstract An ultrafast detector that is sensitive to radiation in a broad spectral range from submillimeter waves to visible light is reported. It consists of a structured NbN thin film cooled to a temperature below Tc (∼11 K). Using 20 ps pulses of a GaAs laser, we observed signal pulses with both rise and decay time of about 50 ps. From the analysis of a mixing experiment with submillimeter radiation we estimate an intrinsic response time of the detector of ∼12 ps. The sensitivity was found to be similar for the near‐infrared and submillimeter radiation. Broadband sensitivity and short response time are attributed to a quasiparticle heating effect.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 252  
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Author Verevkin, A. I.; Ptitsina, N. G.; Chulkova, G. M.; Gol'tsman, G. N.; Gershenzon, E. M.; Yngvesson, K. S. url  openurl
  Title Electron energy relaxation in a 2D channel in AlGaAs-GaAs heterostructures under quasiequilibrium conditions at low temperatures Type Journal Article
  Year 1995 Publication JETP Lett. Abbreviated Journal JETP Lett.  
  Volume 61 Issue (up) 7 Pages 591-595  
  Keywords 2DEG, AlGaAs/GaAs heterostructures  
  Abstract The energy relaxation time of 2D electrons, Te, has been measured under quasiequilibrium conditions in AlGaAs—GaAs heterojunctions over the temperature range T= 1.5—20 K. At T> 4 K, Te depends only weakly on the temperature, while at T< 4 K 7;'(T) there is a dependence fr; lNT. A linear dependence 7: 1 (T) in the Bloch—-Grfineisen temperature region (T< 5 K) is unambiguous evidence that a piezoacoustic mechanism of an electron—phonon interaction is predominant in the inelastic scattering of electrons. The values of T6 in this temperature range agree very accurately with theoretical results reported by Karpus [Sov. Phys. Semicond. 22 (1988)]. At higher temperatures, where scat—tering by deformation acoustic phonons becomes substantial, there is a significant discrepancy between the experimental and theoretical re-sults.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1624  
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Author Semenov, A. D.; Gol’tsman, G. N.; Gogidze, I. G.; Sergeev, A. V.; Gershenzon, E. M.; Lang, P. T.; Renk, K. F. url  doi
openurl 
  Title Subnanosecond photoresponse of a YBaCuO thin film to infrared and visible radiation by quasiparticle induced suppression of superconductivity Type Journal Article
  Year 1992 Publication Appl. Phys. Lett. Abbreviated Journal Appl. Phys. Lett.  
  Volume 60 Issue (up) 7 Pages 903-905  
  Keywords YBCO HTS detectors  
  Abstract We observed subnanosecond photoresponse of a structured superconducting YBa2Cu3O7−δ thin film to infrared and visible radiation. We measured the voltage response of a current biased film (thickness 700 Å) in a resistive state to radiation pulses. From our results we conclude a response time of about 90 ps and a responsivity of about 4×1010 Ω/J. We attribute the response to Cooper pair breaking and suppression of the superconducting energy gap induced by nonequilibrium quasiparticles.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0003-6951 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1672  
Permanent link to this record
 
 
Author Gershenzon, E. M.; Gol'tsman, G. N.; Elant'ev, A. I.; Karasik, B. S.; Potoskuev, S. E. url  openurl
  Title Intense electromagnetic radiation heating of superconductor electrons in resistive state Type Journal Article
  Year 1988 Publication Fizika Nizkikh Temperatur Abbreviated Journal Fizika Nizkikh Temperatur  
  Volume 14 Issue (up) 7 Pages 753-763  
  Keywords Nb HEB  
  Abstract An experimental study is made of the effect of intense radiation in the millimeter and submillimeter ranges on thin and narrow Nb films in the resistive state. It is found that the excess resistance resulting from radiation and the dependence of its relaxation time on radiation intensity and transport current can be explained in terms of the effect of electron heating. Quantitative agreement is obtained between the experimental data and a homogeneous electron heating model.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1697  
Permanent link to this record
 
 
Author Gershenzon, E. M.; Gershenzon, M. E.; Gol'tsman, G. N.; Semenov, A. D.; Sergeev, A. V. url  openurl
  Title Nonselective effect of electromagnetic radiation on a superconducting film in the resistive state Type Journal Article
  Year 1982 Publication JETP Lett. Abbreviated Journal JETP Lett.  
  Volume 36 Issue (up) 7 Pages 296-299  
  Keywords HEB  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Неселективное воздействие электромагнитного излучения на сверхпроводящую пленку в резистивном состоянии Approved no  
  Call Number Serial 1717  
Permanent link to this record
 
 
Author Karasik, B. S.; Zorin, M. A.; Milostnaya, I. I.; Elantev, A. I.; Gol’tsman, G. N.; Gershenzon, E. M. url  doi
openurl 
  Title Subnanosecond switching of YBaCuO films between superconducting and normal states induced by current pulse Type Journal Article
  Year 1995 Publication J. Appl. Phys. Abbreviated Journal J. Appl. Phys.  
  Volume 77 Issue (up) 8 Pages 4064-4070  
  Keywords YBCO HTS switches  
  Abstract A study is reported of the current switching in high‐quality YBaCuO films deposited onto NdGaO3 and ZrO2 substrates between superconducting (S) and normal (N) states. The films 60–120 nm thick prepared by laser ablation were structured into single strips between gold contacts. The time dependence of the resistance after application of the voltage step to the film was monitored. Experiment performed within certain ranges of voltage amplitudes and temperatures has shown the occurrence of the fast stage (shorter than 400 ps) both in S‐N and N‐S transitions. A fraction of the film resistance changing within this stage in the S‐N transition increases with the current amplitude. A subnanosecond N‐S stage becomes more pronounced for shorter pulses. The fast switching is followed by the much slower change of resistance. The mechanism of switching is discussed in terms of the hot‐electron phenomena in YBaCuO. The contributions of other thermal processes (e.g., a phonon escape from the film, a heat diffusion in the film and substrate, a resistive domain formation) in the subsequent stage of the resistance dynamic have been also discussed. The basic limiting characteristics (average dissipated power, energy needed for switching, maximum repetition rate) of a picosecond switch which is proposed to be developed are estimated.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0021-8979 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1623  
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Author Gershenzon, E. M.; Gol'tsman, G. N.; Potapov, V. D.; Sergeev, A. V. url  doi
openurl 
  Title Restriction of microwave enhancement of superconductivity in impure superconductors due to electron-electron interaction Type Journal Article
  Year 1990 Publication Solid State Communications Abbreviated Journal Solid State Communications  
  Volume 75 Issue (up) 8 Pages 639-641  
  Keywords impure superconductors  
  Abstract Transition from microwave enhancement of supercurrent to superconductivity suppression is investigated in impure superconductors. It is demonstrated that the frequency range of the enhancement effect narrows with the decrease of the electron mean free path, l, and at l ⩽ 1 nm electron heating is observed in the whole frequency range. Dependences of frequency boundaries on l are explained by taking into account strong electron-electron interaction in impure metals.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0038-1098 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1687  
Permanent link to this record
 
 
Author Voevodin, E. I.; Gershenzon, E. M.; Goltsman, G. N.; Ptitsina, N. G. url  openurl
  Title Energy-spectrum of shallow acceptors in Ge deformed strongly by a uniaxial pressure Type Journal Article
  Year 1989 Publication Sov. Phys. and Technics of Semiconductors Abbreviated Journal Sov. Phys. and Technics of Semiconductors  
  Volume 23 Issue (up) 8 Pages 843-846  
  Keywords Ge, crystallography  
  Abstract Проведены исследования спектров фототермической ионизации мелких акцепторов (В, Аl) в Ge, предельно сжатом вдоль кристаллографической оси [100]. Из данных измерений с учетом теории построен энергетический спектр примесей. Показано, что энергии большого числа уровней четных и нечетных состояний хорошо соответствуют расчету, выполненному для примесей в анизотропном полупроводнике с параметром анизотропии γ=m∗⊥/m∗∥>1.  
  Address  
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  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Энергетический спектр мелких акцепторов в сильно одноосно деформированном Ge Approved no  
  Call Number Serial 1692  
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Author Gershenzon, E. M.; Goltsman, G.; Orlova, S.; Ptitsina, N.; Gurvich, Y. url  openurl
  Title Germanium hot-electron narrow-band detector Type Journal Article
  Year 1971 Publication Sov. Radio Engineering And Electronic Physics Abbreviated Journal Sov. Radio Engineering And Electronic Physics  
  Volume 16 Issue (up) 8 Pages 1346  
  Keywords Ge HEB detectors  
  Abstract  
  Address  
  Corporate Author Thesis  
  Publisher Scripps Clinic Res Foundation 476 Prospect St, La Jolla, Ca 92037 Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1741  
Permanent link to this record
 
 
Author Gol'tsman, G. N.; Semenov, A. D.; Gousev, Y. P.; Zorin, M. A.; Gogidze, I. G.; Gershenzon, E. M.; Lang, P. T.; Knott, W. J.; Renk, K. F. url  doi
openurl 
  Title Sensitive picosecond NbN detector for radiation from millimetre wavelengths to visible light Type Journal Article
  Year 1991 Publication Supercond. Sci. Technol. Abbreviated Journal Supercond. Sci. Technol.  
  Volume 4 Issue (up) 9 Pages 453-456  
  Keywords NbN HEB detectors  
  Abstract The authors report on the application of a broad-band NbN film detector which has high sensitivity and picosecond response time for detection of radiation from millimetre wavelengths to visible light. From a study of amplitude modulated radiation of backward-wave tubes and picosecond pulses from gas and solid state lasers at wavelengths between 2 mm and 0.53 mu m, they found a detectivity of 1010 W-1 cm Hz-1/2 and a response time of less than 50 ps at T=10 K. The characteristics were provided by using a 150 AA thick NbN film patterned into a structure of micron strips. According to the proposed detection mechanism, namely electron heating, they expect an intrinsic response time of approximately 20 ps at the same temperature.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0953-2048 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 242  
Permanent link to this record
 
 
Author Il'in, K. S.; Karasik, B. S.; Ptitsina, N. G.; Sergeev, A. V.; Gol'tsman, G. N.; Gershenzon, E. M.; Pechen, E. V.; Krasnosvobodtsev, S. I. url  doi
openurl 
  Title Electron-phonon-impurity interference in thin NbC films: electron inelastic scattering time and corrections to resistivity Type Conference Article
  Year 1996 Publication Czech. J. Phys. Abbreviated Journal Czech. J. Phys.  
  Volume 46 Issue (up) S2 Pages 857-858  
  Keywords NbC films  
  Abstract Complex study of transport properties of impure NbC films with the electron mean free pathl=0.6–13 nm show the crucial role of the electron-phonon-impurity interference (EPII). In the temperature range 20–70 K we found the interference correction to resistivity proportional to T2 and to the residual resistivity of the film. Using the comprehensive theory of EPII, we determine the electron coupling with transverse phonons and calculate the electron inelastic scattering time. Direct measurements of the inelastic electron scattering time using a response to a high-frequency amplitude modulated cw radiation agree well with the theory.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0011-4626 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1617  
Permanent link to this record
 
 
Author Chulcova, G. M.; Ptitsina, N. G.; Gershenzon, E. M.; Gershenzon, M. E.; Sergeev, A. V. url  doi
openurl 
  Title Effect of the interference between electron-phonon and electron-impurity (boundary) scattering on resistivity Nb, Al, Be films Type Conference Article
  Year 1996 Publication Czech J. Phys. Abbreviated Journal Czech J. Phys.  
  Volume 46 Issue (up) S5 Pages 2489-2490  
  Keywords Al, Be, Nb films  
  Abstract The temperature dependence of the resistivity of thin Nb, Al, Be films has been studied over a wide temperature range 4-300 K. We have found that the temperature-dependent correction to the residual resistivity is well described by the sum of the Bloch-Grüneisen term and the term originating from the interference between electron-phonon and electron-impurity scattering. Study of the transport interference phenomena allows to determine electron-phonon coupling in disordered metals. The interference term is proportional to T2 and also to the residual resistivity and dominates over the Bloch-Grüneisen term at low temperatures (T<40 K).  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0011-4626 ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1767  
Permanent link to this record
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