| Records |
| Author |
Aksaev, E. E.; Gershenzon, E. M.; Gol'tsman, G. N.; Semenov, A. D.; Sergeev, A. V. |
| Title |
Interaction of electrons with thermal phonons in YBa2Cu3O7-δ films at low temperatures |
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Journal Article |
| Year |
1989 |
Publication |
JETP Lett. |
Abbreviated Journal |
JETP Lett. |
| Volume |
50 |
Issue  |
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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1690 |
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Gershenzon, E. M.; Gol'tsman, G. N.; Karasik, B. S.; Semenov, A. D. |
| Title |
Measurement of the energy gap in the compound YBaCu3O9-δ on the basis of the IR absorption spectrum |
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Journal Article |
| Year |
1987 |
Publication |
JETP Lett. |
Abbreviated Journal |
JETP Lett. |
| Volume |
46 |
Issue |
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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1703 |
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Gershenzon, E. M.; Gol'tsman, G. N.; Semenov, A. D. |
| 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 |
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 |
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Russian |
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0032-8162 |
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Субмиллиметровый спектрометр с лампами обратной волны для измерения пропускания сверхпроводниковых пленок |
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1713 |
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Gershenzon, E.; Gershenzon, M. E.; Gol'tsman, G. N.; Semenov, A. D.; Sergeev, A. V. |
| Title |
Heating of quasiparticles in a superconducting film in the resistive state |
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Journal Article |
| Year |
1981 |
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JETP Lett. |
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JETP Lett. |
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34 |
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5 |
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268-271 |
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1716 |
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Gershenzon, E. M.; Gol'tsman, G. N.; Mel'nikov, A. P. |
| Title |
Binding energy of a carrier with a neutral impurity atom in germanium and in silicon |
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Journal Article |
| Year |
1971 |
Publication |
JETP Lett. |
Abbreviated Journal |
JETP Lett. |
| Volume |
14 |
Issue |
5 |
Pages |
185-186 |
| Keywords |
Ge, Si, neutral impurity atom, binding energy |
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1739 |
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