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Shangina, E. L.; Smirnov, K. V.; Morozov, D. V.; Kovalyuk, V. V.; Goltsman, G. N.; Verevkin, A. A.; Toropov, A. I.; Mauskopf, P. |
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Title |
Concentration dependence of energy relaxation time in AlGaAs/GaAs heterojunctions: direct measurements |
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Journal Article |
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2011 |
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Semicond. Sci. Technol. |
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Semicond. Sci. Technol. |
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26 |
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2 |
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025013 |
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AlGaAs/GaAs heterojunctions |
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We present measurements of the energy relaxation time, τε, of electrons in a single heterojunction in a quasi-equilibrium state using microwave time-resolved spectroscopy at 4.2 K. We find the relaxation time has a power-law dependence on the carrier density of the two-dimensional electron gas, τε∝nγs with γ = 0.40 ± 0.02 for values of the carrier density, ns, from 1.6 × 1011 to 6.6 × 1011cm−2. The results are in good agreement with predictions taking into account the scattering of the carriers by both piezoelectric and deformation potential acoustic phonons. We compare these results with indirect measurements of the energy relaxation time from energy loss measurements involving Joule heating of the electron gas. |
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0268-1242 |
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1215 |
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Gershenzon, E. M.; Goltsman, G. N. |
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Title |
Zeeman effect in excited-states of donors in germanium |
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Journal Article |
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1972 |
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Sov. Phys. Semicond. |
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Sov. Phys. Semicond. |
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6 |
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3 |
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509 |
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Ge, donors, Zeeman effect |
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Amer Inst Physics 1305 Walt Whitman Rd, Ste 300, Melville, Ny 11747-4501 Usa |
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1737 |
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Gershenson, E. M.; Gol'tsman, G. N.; Elant'ev, A. I.; Kagane, M. L.; Multanovskii, V. V.; Ptitsina, N. G. |
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Title |
Use of submillimeter backward-wave tube spectroscopy in determination of the chemical nature and concentration of residual impurities in pure semiconductors |
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Journal Article |
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1983 |
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Sov. Phys. Semicond. |
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Sov. Phys. Semicond. |
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17 |
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8 |
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908-913 |
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BWO spectroscopy, pure semiconductors, residual impurities |
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Применение субмиллиметровой ЛОВ спектроскопии для определения химической природы и концентрации примесей в чистых полупроводниках |
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1714 |
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Blagosklonskaya, L. E.; Gershenzon, E. M.; Gol’tsman, G. N.; Elant’ev, A. I. |
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Effect of a strong magnetic field on the spectrum of donors in InSb |
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1978 |
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Sov. Phys. Semicond. |
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Sov. Phys. Semicond. |
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11 |
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12 |
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1395-1397 |
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InSb, spectrum of donors, strong magnetic field |
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1725 |
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Gershenzon, E. M.; Goltsman, G. N.; Ptitsyna, N. G. |
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Title |
Investigation of excited donor states in GaAs |
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1974 |
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Sov. Phys. Semicond. |
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Sov. Phys. Semicond. |
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7 |
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10 |
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1248-1250 |
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GaAs, excited donor states |
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Amer Inst Physics 1305 Walt Whitman Rd, Ste 300, Melville, Ny 11747-4501 Usa |
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1733 |
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