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Author Kostiuk, T.; Spears, D.
Title 30 μm heterodyne receiver Type Journal Article
Year 1987 Publication Int. J. Infrared and Millimeter Waves Abbreviated Journal
Volume 8 Issue 10 Pages 1269-1279
Keywords HgCdTe detector mixer
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Call Number Serial 235
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Author Uchiki, Hisao; Kobayashi, Takayoshi; Sakaki, Hiroyuki
Title Photoluminescence and energy‐loss rates in GaAs quantum wells under high‐density excitation Type Journal Article
Year 1987 Publication J. Appl. Phys. Abbreviated Journal
Volume 62 Issue 3 Pages 1010-1016
Keywords 2DEG, GaAs/AlGaAs, heat flow, electron-phonon, hole-phonon, carrier-phonon, interactions
Abstract The time‐resolved luminescence spectra from excited conduction subbands in three samples of multi‐quantum‐well GaAs/AlxGa1-xAs (x=0.3 and 1) semiconductors with several well widths and barrier heights were obtained under high‐density excitations by a 30‐ps pulsed laser at 532 nm, which generated electron–hole pairs to the concentration of 1010–1013/cm2 per well per pulse at 77 K. The temperature and the Fermi energy of electron were determined by fitting best the constructed time‐resolved spectrum to the observed, and the time‐dependent electron energy was obtained by using these parameters. The energy‐loss rates of hot electrons are at least twice smaller than the calculated ones induced by the electron‐polar phonon scattering, including the screening effect due to the high carrier density.
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Call Number Serial 635
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Author Santhanam, P.; Wind, S.; Prober, D. E.
Title Localization, superconducting fluctuations, and superconductivity in thin films and narrow wires of aluminum Type Journal Article
Year 1987 Publication Phys. Rev. B Abbreviated Journal Phys. Rev. B
Volume 35 Issue 7 Pages 3188-3206
Keywords Al films; electron-phonon scattering; electron-electron scattering; Disordered structures; amorphous and glassy solids, Relaxation times and mean free paths, Galvanomagnetic and other magnetotransport effects
Abstract We report a comprehensive set of experiments on wide and narrow thin-film strips of aluminum which test the predictions of recent localization theory. The experiments on wide films in the two-dimensional regime confirm the theoretical predictions and also yield insight into inelastic mechanisms and spin-orbit scattering rates. Our extension of the existing theory for one-dimensional systems to include spin-orbit scattering and Maki-Thompson superconducting fluctuations is verified by the experiments. We find clear evidence for one-dimensional localization, with inferred inelastic rates identical to those in two-dimensional films. The prediction of the localization theory for a dimensional crossover from two-dimensional to one-dimensional behavior is also confirmed. We have reanalyzed the results of some previous experiments on thin films and narrow wires in light of these results.
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Call Number RPLAB @ gujma @ Serial 757
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Title ГОСТ 2.119-73. ЕСКД. Эскизный проект Type Book Whole
Year 1987 Publication Abbreviated Journal
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Keywords gost, detproj
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Call Number Serial 867
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Author Gurevich, A. Vl.; Mints, R. G.
Title Self-heating in normal metals and superconductors Type Journal Article
Year 1987 Publication Rev. Mod. Phys. Abbreviated Journal
Volume 59 Issue 4 Pages 941-1000
Keywords HEB, Joule self-heating effect
Abstract This review is devoted to the physics of current-carrying superconductors and normal metals having two or more stable states sustained by Joule self-heating. The creation, propagation, and localization of electrothermal domains and switching waves leading to the transition from one stable state to another in uniform and nonuniform samples are treated in detail. The connection between thermal bistability and hysteresis, dropping and stepped current-voltage characteristics, self-induced oscillations of current and voltage, selfreplication of electrothermal domains, and the formation of periodic and stochastic resistive structures are considered.
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Call Number Serial 917
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