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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 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 (up)  
  Notes Approved no  
  Call Number Serial 1767  
Permanent link to this record
 
 
Author Gershenzon, E. M.; Gurvich, Yu. A.; Orlova, S. L.; Ptitsina, N. G. url  openurl
  Title Cyclotron resonance of electrons in Ge in a quantizing magnetic field in the case of inelastic scattering by acoustic phonons Type Journal Article
  Year 1975 Publication Sov. Phys. JETP Abbreviated Journal Sov. Phys. JETP  
  Volume 40 Issue 2 Pages 311-315  
  Keywords Ge, cyclotron resonance  
  Abstract Results are presented of an experimental study of the linewidth of cyclotron resonance under strong quantization conditions on the scattering of electrons by acoustic phonons. The measurements were performed in the 2....{).4 mm wavelength range at temperatures between 10 and 1.4 OK. A number of singularities were observed in the temperature and frequency dependences of the cyclotron linewidth. These can be ascribed to the effect of inhomogeneous broadening due to nonparabolicity of the electron spectrum, which is renormalized as a result of interaction with acoustic 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 ISBN Medium  
  Area Expedition Conference (up)  
  Notes Approved no  
  Call Number Serial 1768  
Permanent link to this record
 
 
Author Gershenzon, E. M.; Gurvich, Y. A.; Orlova, S. L.; Ptitsina, N. G. url  openurl
  Title Scattering of electrons by charged impurities in Ge under cyclotron resonance conditions Type Journal Article
  Year 1976 Publication Presumably: Sov. Phys. Semicond. | Физика и техника полупроводников Abbreviated Journal Presumably: Sov. Phys. Semicond. | Физика и техника полупроводников  
  Volume 10 Issue Pages 1379-1383  
  Keywords Ge, cyclotron resonance, charged 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 (up)  
  Notes Approved no  
  Call Number Serial 1772  
Permanent link to this record
 
 
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 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 (up)  
  Notes Approved no  
  Call Number Serial 1773  
Permanent link to this record
 
 
Author Bondarenko, O. I.; Gershenzon, E. M.; Gurvich, Y. A.; Orlova, S. L.; Ptitsina, N. G. url  openurl
  Title Measurement of the width of the cyclotron resonance line of n-type Ge in quantizing magnetic fields Type Journal Article
  Year 1972 Publication Presumably: Sov. Phys. Semicond. | Физика и техника полупроводников Abbreviated Journal Presumably: Sov. Phys. Semicond. | Физика и техника полупроводников  
  Volume 6 Issue Pages 362-363  
  Keywords Ge, cyclotron resonance, quantizing magnetic fields  
  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 (up)  
  Notes Approved no  
  Call Number Serial 1774  
Permanent link to this record
 
 
Author Gol’tsman, G. N.; Gershenzon, E. M. url  doi
openurl 
  Title High speed hot-electron superconducting bolometer Type Conference Article
  Year 1993 Publication Proc. SPIE Abbreviated Journal Proc. SPIE  
  Volume 2104 Issue Pages 181-182  
  Keywords NbN HEb, Nb, Al  
  Abstract Physical limitation of response time of a superconducting bolometer as well as the nature of non-equilibrium detection of radiation have been investigated for Al, Nb and NbN thin films in spectral range from submillimeter to near-infraredwavelengths [1,2]. In the case of ideal heat removal from the film with the f_‘. 100A thickness the detection mechanism is an electron heating effect that is not selective to radiation wavelength in a very broad range. The response time ofan electron heating bolometer is determined by an electron-phonon interaction time. This time is of about 10 ns, 0.5 ns and 20 ps for Al, Nb, and NbN correspondingly near the critical temperature of the superconducting film. Thesensitive area of the bolometer consists of a number of narrow strips (with awidth of 1µm) connected in parallel to contact pads; these pads together witha sapphire substrate and a ground plate represent the microstrip transmissionline with an impedance of 50 Q.  
  Address  
  Corporate Author Thesis  
  Publisher SPIE Place of Publication Editor Birch, J.R.; Parker, T.J.  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference (up) 18th International Conference on Infrared and Millimeter Waves  
  Notes Approved no  
  Call Number Serial 1652  
Permanent link to this record
 
 
Author Danerud, M.; Winkler, D.; Zorin, M.; Trifonov, V.; Karasik, B.; Gershenzon, E. M.; Gol'tsman, G. N.; Lindgren, M. url  doi
openurl 
  Title Picosecond detection of infrared radiation with YBa2Cu3O7-δ thin films Type Conference Article
  Year 1993 Publication Proc. SPIE Abbreviated Journal Proc. SPIE  
  Volume 2104 Issue Pages 183-184  
  Keywords YBCO HTS HEB detectors  
  Abstract Picosecond nonequilibrium and slow bolometric responses from a patterned high-Tc superconducting (HTS) film due toinfrared radiation were investigated using both modulation and pulse techniques. Measurements at A, = 0.85 [tm andA, = 10.6 lim have shown a similar behaviour of the response vs modulation frequency f. The responsivity of the HTS filmbased detector at f ..- 0.6-1 GHz is estimated to be 10-2 – 10-1 V/W.  
  Address  
  Corporate Author Thesis  
  Publisher Spie Place of Publication Editor Birch, J.R.; Parker, T.J.  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference (up) 18th International Conference on Infrared and Millimeter Waves  
  Notes https://inis.iaea.org/search/searchsinglerecord.aspx?recordsFor=SingleRecord&RN=25034664 Approved no  
  Call Number 10.1117/12.2298489 Serial 1653  
Permanent link to this record
 
 
Author Gershenzon, E. M.; Gol'tsman, G. N. url  doi
openurl 
  Title Hot-electron superconducting mixers Type Conference Article
  Year 1993 Publication Proc. SPIE Abbreviated Journal Proc. SPIE  
  Volume 2104 Issue Pages 329-330  
  Keywords  
  Abstract The creation of low noise heterodyne receivers for frequencies above 1 THz is in the urgentneed for radio astronomy, laser spectroscopy, plasma diagnostic, etc. In this paper we discussthe nonlinear effect related to hot electrons in superconductors, and their potential use in lownoise submilimeter wave mixer. We also discuss results achieved so far as well as possible futuredevelopments.  
  Address  
  Corporate Author Thesis  
  Publisher SPIE Place of Publication Editor Birch, J.R.; Parker, T.J.  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference (up) 18th International Conference on Infrared and Millimeter Waves  
  Notes Approved no  
  Call Number Serial 1654  
Permanent link to this record
 
 
Author Semenov, A. D.; Sergeev, A. V.; Kouminov, P.; Goghidze, I. G.; Heusinger, M. A.; Nebosis, R. S.; Gol'tsman, G. N.; Gershenzon, E. M.; Renk, K. F. url  isbn
openurl 
  Title Transparency of YBCO film/substrate interfaces for thermal phonons determined by photoresponse measurements Type Conference Article
  Year 1993 Publication Proc. 1st European Conf. on Appl. Supercond. Abbreviated Journal Proc. 1st European Conf. on Appl. Supercond.  
  Volume 2 Issue Pages 1443-1446  
  Keywords YBCO HTS detectors  
  Abstract Direct measurements of the thermal boundary resistance were performed by means of the stationary method. In this approach the temperature of an electrically heated film is controlled by its dc resistance while an additional film on the same substrate is used as a thermometer monitoring substrate temperature. The temperature field in the substrate is then calculated to deduce the Kapitza temperature step at the interface between the heated strip and the substrate. The main statement of all afore-said papers is that experimental values of the thermal boundary resistance are too large to be explained by the acoustic mismatch model. In this paper we investigate transparency of YBaCuO film/substrate interfaces for thermal phonons by means of photoresponse measurements. We show that our data are in reasonable agreement with the acoustic mismatch theory.  
  Address  
  Corporate Author Thesis  
  Publisher Place of Publication Editor Freyhardt, H. C.  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN 3-88355-197-X Medium  
  Area Expedition Conference (up) 1st European conference on applied superconductivity  
  Notes Approved no  
  Call Number Serial 1661  
Permanent link to this record
 
 
Author Cherednichenko, S.; Yagoubov, P.; Il'in, K.; Gol'tsman, G.; Gershenzon, E. doi  openurl
  Title Large bandwidth of NbN phonon-cooled hot-electron bolometer mixers Type Conference Article
  Year 1997 Publication Proc. 27th Eur. Microwave Conf. Abbreviated Journal  
  Volume 2 Issue Pages 972-977  
  Keywords HEB mixer, fabrication process  
  Abstract The bandwidth of NbN phonon-cooled hot electron bolometer mixers has been systematically investigated with respect to the film thickness and film quality variation. The films, 2.5 to 10 nm thick, were fabricated on sapphire substrates using DC reactive magnetron sputtering. All devices consisted of several parallel strips, each 1 um wide and 2 um long, placed between Ti-Au contact pads. To measure the gain bandwidth we used two identical BWOs operating in the 120-140 GHz frequency range, one functioning as a local oscillator and the other as a signal source. The majority of the measurements were made at an ambient temperature of 4.2 K with optimal LO and DC bias. The maximum 3 dB bandwidth (about 4 GHz) was achieved for the devices made of films which were 2.5-3.5 nm thick, had a high critical temperature, and high critical current density. A theoretical analysis of bandwidth for these mixers based on the two-temperature model gives a good description of the experimental results if one assumes that the electron temperature is equal to the critical temperature.  
  Address Jerusalem, Israel  
  Corporate Author Thesis  
  Publisher IEEE 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 (up) 27th Eur. Microwave Conf.  
  Notes Approved no  
  Call Number Serial 1075  
Permanent link to this record
 
 
Author Merkel, H. F.; Yagoubov, P. A.; Kroug, M.; Khosropanah, P.; Kollberg, E. L.; Gol’tsman, G. N.; Gershenzon, E. M. url  doi
openurl 
  Title Noise temperature and absorbed LO power measurement methods for NbN phonon-cooled hot electron bolometric mixers at terahertz frequencies Type Conference Article
  Year 1998 Publication Proc. 28th European Microwave Conf. Abbreviated Journal Proc. 28th European Microwave Conf.  
  Volume 1 Issue Pages 294-299  
  Keywords NbN HEB mixers  
  Abstract In this paper the absorbed LO power requirements and the noise performance of NbN based phonon-cooled hot electron bolometric (HEB) quasioptical mixers are investigated for RF frequencies in the 0.55-1.1 range The minimal measured DSB noise temperatures are about 500 K at 640 GHz, 600 K at 750 GHz, 850 K at 910 GHz and 1250 K at 1.1 THz. The increase in noise temperature at 1.1THz is attributed to water absorption. The absorbed LO power is measured using a calorimetric approach. The results are subsequently corrected for lattice heating. These values are compared to results of a novel one dimensional hot spot mixer models and to a more traditional isotherm method which tends to underestimate the absorbed LO power for small bias powers. Typically a LO power between 50nW and 100nW is needed to pump the device to the optimal operating point.  
  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 (up) 28th European Microwave Conference  
  Notes Approved no  
  Call Number Serial 1580  
Permanent link to this record
 
 
Author Schubert, J.; Semenov, A.; Hübers, H.-W.; Gol'tsman, G.; Schwaab, G.; Voronov, B.; Gershenzon, E. url  openurl
  Title Broad-band terahertz NbN hot-electron bolometric mixer Type Conference Article
  Year 1999 Publication Inst. Phys. Conf. Abbreviated Journal Inst. Phys. Conf.  
  Volume 167 Issue Pages 663-666  
  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 ISBN Medium  
  Area Expedition Conference (up) 4th Europ. Conf. on Appl. Superconductivity, Barcelona, Spain, 14-17 September 1999  
  Notes Approved no  
  Call Number Serial 1578  
Permanent link to this record
 
 
Author Gershenzon, E. M.; Gol'tsman, G. N. url  openurl
  Title Effect of electromagnetic radiation on a superconductor in a magnetic field Type Conference Article
  Year 1988 Publication Izv. Akad. Nauk SSSR, Seriya Fizicheskaya Abbreviated Journal Izv. Akad. Nauk SSSR, Seriya Fizicheskaya  
  Volume 52 Issue 3 Pages 449-451  
  Keywords  
  Abstract The effect of electromagnetic radiation on thin superconducting films of Nb with a large number of static defects is investigated experimentally for the case where the film is in the resistive state due to an applied magnetic field and transport current. The results obtained are found to be well described by a model of spatially homogeneous electron heating. It is noted that the results obtained here for Nb films are also valid for Al, NbN, and MoRe films.  
  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 0367-6765 ISBN Medium  
  Area Expedition Conference (up) 4th Vsesoiuznyi Seminar po Opticheskomu Detektirovaniiu Magnitnykh Rezonansov v Tverdykh Telakh, Tallin, Estonian SSR, Apr. 1987  
  Notes Approved no  
  Call Number Serial 1702  
Permanent link to this record
 
 
Author Huebers, H.-W.; Semenov, A.; Schubert, J.; Gol’tsman, G. N.; Voronov, B. M.; Gershenzon, E. M.; Krabbe, A.; Roeser, H.-P. url  doi
openurl 
  Title NbN hot-electron bolometer as THz mixer for SOFIA Type Conference Article
  Year 2000 Publication Proc. SPIE Abbreviated Journal Proc. SPIE  
  Volume 4014 Issue Pages 195-202  
  Keywords NbN HEB mixers, airborne, stratospheric observatory, SOFIA  
  Abstract Heterodyne receivers for applications in astronomy need quantum limited sensitivity. We have investigated phonon- cooled NbN hot electron bolometric mixers in the frequency range from 0.7 THz to 5.2 THz. The devices were 3.5 nm thin films with an in-plane dimension of 1.7 X 0.2 micrometers 2 integrated in a complementary logarithmic spiral antenna. The best measured DSB receiver noise temperatures are 1300 K (0.7 THz), 2000 K (1.4 THz), 2100 K (1.6 THz), 2600 K (2.5 THz), 4000 K (3.1 THz), 5600 K (4.3 THz), and 8800 K (5.2 THz). The sensitivity fluctuation, the long term stability, and the antenna pattern were measured. The results demonstrate that this mixer is very well suited for GREAT, the German heterodyne receiver for SOFIA.  
  Address  
  Corporate Author Thesis  
  Publisher SPIE Place of Publication Editor Melugin, R.K.; Roeser, H.-P.  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN ISBN Medium  
  Area Expedition Conference (up) Airborne Telescope Systems  
  Notes Approved no  
  Call Number Serial 1554  
Permanent link to this record
 
 
Author Karasik, B. S.; Il'in, K. S.; Ptitsina, N. G.; Gol'tsman, G. N.; Gershenzon, E. M.; Pechen', E. V.; Krasnosvobodtsev, S. I. url  openurl
  Title Electron-phonon scattering rate in impure NbC films Type Abstract
  Year 1998 Publication NASA/ADS Abbreviated Journal NASA/ADS  
  Volume Issue Pages Y35.08  
  Keywords NbC films  
  Abstract The study of the electron-phonon interaction in thin (20 nm) NbC films with electron mean free path l=2-13 nm gives an evidence that electron scattering is significantly modified due to the interference between electron-phonon and elastic electron scattering from impurities. The interference ~T^2-term, which is proportional to the residual resistivity, dominates over the Bloch-Grüneisen contribution to resistivity at low temperatures up to 60 K. The electron energy relaxation rate is directly measured via the relaxation of hot electrons heated by modulated electromagnetic radiation. In the temperature range 1.5 – 10 K the relaxation rate shows a weak dependence on the electron mean free path and strong temperature dependence T^n with the exponent n = 2.5-3. This behaviour is well explained by the theory of the electron-phonon-impurity interference taking into account the electron coupling with transverse phonons determined from the resistivity data.  
  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 (up) American Physical Society, Annual March Meeting, March 16-20, 1998 Los Angeles, CA  
  Notes Approved no  
  Call Number Serial 1591  
Permanent link to this record
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