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Kaganov, M. L.; Lifshitz, I. M.; Tanatarov, L. V. |
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Title |
Relaxation between electrons and the crystalline lattice |
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Year |
1957 |
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Sov. Phys. JETP |
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Sov. Phys. JETP |
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4 |
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2 |
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173-178 |
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HEB, nonlinear equations, numerical model |
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894 |
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Gershenzon, E. M.; Gol'tsman, G. N.; Multanovskii, V. V.; Ptitsina, N. G. |
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Title |
Kinetics of electron and hole binding into excitons in germanium |
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Journal Article |
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Year |
1983 |
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Sov. Phys. JETP |
Abbreviated Journal |
Sov. Phys. JETP |
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Volume |
57 |
Issue |
2 |
Pages |
369-376 |
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Keywords |
Ge, electron and hole binding |
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The kinetics of binding of free carriers'into excitons under stationary and nonstationary conditions is studied by investigating the submillimeter photoconductivity of Ge in a wide range of temperatures and of excitation levels. It is shown that the absolute values and the temperature dependence of the binding cross section (o- T-'.' ) can be satisfactorily described by the cascade recombination theory. The value of o and its temperature dependence differ significantly from the cross sections, measured in the same manner, for capture by attracting small impurities. Under nonstationary conditions, just as in the case of recombination with shallow impurities, a signifi- cant role is played by the sticking of the carriers in highly excited states. |
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1711 |
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Tuchak, A. N.; Gol’tsman, G. N.; Kitaeva, G. K.; Penin, A. N.; Seliverstov, S. V.; Finkel, M. I.; Shepelev, A. V.; Yakunin, P. V. |
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Title |
Generation of nanosecond terahertz pulses by the optical rectification method |
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Journal Article |
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2012 |
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JETP Lett. |
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JETP Lett. |
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Volume |
96 |
Issue |
2 |
Pages |
94-97 |
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Keywords |
optical rectification, lithium niobate crystal |
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The possibility of the generation of quasi-cw terahertz radiation by the optical rectification method for broad-band Fourier unlimited nanosecond laser pulses has been experimentally demonstrated. The broadband radiation of a LiF dye-center laser is used as a pump source of a nonlinear optical oscillator. The energy efficiency of terahertz optical frequency conversion in a periodically polarized lithium niobate crystal is 4 × 10−9 at a pump power density of 7 MW/cm2. |
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0021-3640 |
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1377 |
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Baeva, E. M.; Titova, N. A.; Kardakova, A. I.; Piatrusha, S. U.; Khrapai, V. S. |
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Title |
Universal bottleneck for thermal relaxation in disordered metallic films |
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2020 |
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JETP Lett. |
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Jetp Lett. |
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Volume |
111 |
Issue |
2 |
Pages |
104-108 |
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Keywords |
NbN disordered metallic films, thermal relaxation |
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We study the heat relaxation in current biased metallic films in the regime of strong electron–phonon coupling. A thermal gradient in the direction normal to the film is predicted, with a spatial temperature profile determined by the temperature-dependent heat conduction. In the case of strong phonon scattering, the heat conduction occurs predominantly via the electronic system and the profile is parabolic. This regime leads to the linear dependence of the noise temperature as a function of bias voltage, in spite of the fact that all the dimensions of the film are large compared to the electron–phonon relaxation length. This is in stark contrast to the conventional scenario of relaxation limited by the electron–phonon scattering rate. A preliminary experimental study of a 200-nm-thick NbN film indicates the relevance of our model for materials used in superconducting nanowire single-photon detectors. |
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0021-3640 |
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1164 |
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Gol’tsman, G. N.; Smirnov, K. V. |
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Electron-phonon interaction in a two-dimensional electron gas of semiconductor heterostructures at low temperatures |
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2001 |
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Jetp Lett. |
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Jetp Lett. |
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74 |
Issue |
9 |
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474-479 |
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Keywords |
2DEG, AlGaAs/GaAs heterostructures |
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Theoretical and experimental works devoted to studying electron-phonon interaction in the two-dimensional electron gas of semiconductor heterostructures at low temperatures in the case of strong heating in an electric field under quasi-equilibrium conditions and in a quantizing magnetic field perpendicular to the 2D layer are considered. |
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0021-3640 |
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По итогам проектов российского фонда фундаментальных исследований. Проект РФФИ # 98-02-16897 Электрон-фононное взаимодействие в двумерном электронном газе полупроводниковых гетероструктур при низких температурах |
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1541 |
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