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Author (up) 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  
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  ISSN ISBN Medium  
  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1773  
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Author (up) 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 3 Pages 125-128  
  Keywords n-Ge, cyclotron-impurity resonance  
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  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1730  
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Author (up) Gershenzon, Ye. M.; Goltsman, G. N.; Yelantyev, A. I.; Petrova, Ye. B.; Ptitsina, N. G.; Filatov, V. S. url  openurl
  Title Lecture demonstrations of properties of superconductors and liquid helium Type Journal Article
  Year 1987 Publication USSR Rept Phys. Math. JPRS UPM Abbreviated Journal USSR Rept Phys. Math. JPRS UPM  
  Volume 24 Issue 7 Pages 51  
  Keywords demonstrations, lections  
  Abstract New demonstrations for low temperature physics courses are described. Two transparent Dewar vacuum flasks fitting one inside the other with the external flask for nitrogen and the internal flask for helium are used. The helium temperature can be regulated in the 4.2 to 1.6 K range and the effects of reducing helium to the superfluid state at 2.17 K can be shown: boiling abruptly stops and superfluid flow appears. In order to show the electric and magnetic characteristics of superconductivity, a superconducting NbTi solenoid containing nonsuperconducting wire and germanium and superconducting Nb materials with different critical temperatures is placed in the helium refrigerant vessel. The fall of the resistance at the critical temperatures can be shown. In order to show magnetic field and superconductive current flow properties a shunt of superconductive material is connected in parallel to the coil and is enclosed in a teflon container with a heater which can vary its temperature. When it is heated and not superconductive, magnetic field effects can be demonstrated and when it is unheated and superconducting a continuous current can be demonstrated.  
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  Area Expedition Conference  
  Notes Approved no  
  Call Number Serial 1704  
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Author (up) Gol'tsman, G. N.; Gusinskii, E. N.; Malyavkin, A. V.; Ptitsina, N. G.; Selevko, A. G.; Edel'shtein, V. M. url  openurl
  Title The excitonic Zeeman effect in uniaxially-strained germanium Type Journal Article
  Year 1987 Publication Sov. Phys. JETP Abbreviated Journal Sov. Phys. JETP  
  Volume 65 Issue 6 Pages 1233-1241  
  Keywords Ge, Zeeman effect  
  Abstract We have carried out a high-resolution spectroscopic study of the absorption of submillimeter radiation by free excitons in germanium compressed along the [ 1 11 ] axis in a magnetic field parallel to the compression axis. In particular, we studied the splitting of the 1s- 2p transition in fields up to 6 kOe at T = 1.6 K, and observed a complex pattern in the Zeeman splitting which we believe is related to the effect of thermal motion of the excitons in a magnetic field on their internal structure (the magneto-Stark effect). The calculated submillimeter spectrum of excitons agrees with the experimental data. We predict that in a magnetic field the energy of the 2p, term is a minimum at a finite value of the exciton momentum perpendicular to the field-that is, the energy minimum forms a ring in momentum space. It follows that the density of states for this term must be a nonmonotonic function of the energy. A theory is developed of analogous phenomena in positronium.  
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  Notes Approved no  
  Call Number Serial 1705  
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Author (up) Goltsman, G. N.; Maliavkin, A. V.; Ptitsina, N. G.; Selevko, A. G. url  openurl
  Title Magnetic exciton spectroscopy in uniaxially compressed Ge at submillimeter waves Type Conference Article
  Year 1986 Publication Izv. Akad. Nauk SSSR, Seriya Fizicheskaya Abbreviated Journal Izv. Akad. Nauk SSSR, Seriya Fizicheskaya  
  Volume 50 Issue Pages 280-281  
  Keywords Ge, axial compression loads, excitons, germanium, magnetic spectroscopy, submillimeter waves, Zeeman effect  
  Abstract  
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  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 0367-6755 ISBN Medium  
  Area Expedition Conference 3rd Vsesoiuznyi Seminar po Opticheskomu Detektirovaniiu Magnitnykh Rezonansov v Tverdykh Telakh, Kiev, Ukrainian SSR, May 1985  
  Notes Approved no  
  Call Number Serial 1708  
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