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2011 | 119 | 2 | 228-230
Article title

Low Temperature Overheating Effect in SiGe p-Type Quantum Wells. Methods of the Hole-Phonon Energy Relaxation Time Determination

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EN
Abstracts
EN
The temperature dependence of the hole-phonon energy relaxation time τ_{hph} (T) under hot-hole conditions was studied in SiGe p-type quantum wells. The hot-hole temperature T_{h} was estimated through three different experimental methods: (i) from a comparison of the amplitude of the Shubnikov-de Haas oscillations changed by current and temperature; (ii) from a comparison of the phase relaxation time in the effect of weak localization obtained either at different temperatures and minimum current or at different current at a fixed temperature; (iii) from a comparison of the temperature and current dependences of the sample resistance. The values of T_{h} obtained by all three different methods were used to calculate, from the heat balance equation, the temperature dependence of the hole-phonon energy relaxation time τ_{hph} (T). All three temperature dependences τ_{hph} (T) were almost identical and demonstrated transition of the 2D system from "partial inelasticity" to small angle scattering at lower temperatures.
Keywords
EN
Year
Volume
119
Issue
2
Pages
228-230
Physical description
Dates
published
2011-02
References
  • 1. D.R. Leadley, R.J. Nicholas, J.J. Harris, C.T. Foxon, Solid State Electron. 32, 1473 (1989)
  • 2. I.B. Berkutov, Yu.F. Komnik, V.V. Andrievski, O.A. Mironov, M. Mironov, D.R. Leadley, Low Temp. Phys. 34, 943 (2008)
  • 3. V.V. Andrievski, I.B. Berkutov, Yu.F. Komnik, O.A. Mironov, T.E. Whall, Low Temp. Phys. 26, 890 (2000)
  • 4. V.V. Andrievskii, Yu.F. Komnik, M. Myronov, O.A. Mironov, A. Rozheshchenko, T.E. Whall, Physica E 18, 145 (2003)
  • 5. V.Yu. Kashirin, Yu.F. Komnik, O.A. Mironov, C.J. Emelius, T.E. Whall, Sov. Phys.-Low Temp. Phys. 22, 642 (1996)
  • 6. B.L. Altshuler, A.G. Aronov, A.I. Larkin, D.E. Khmel'nitskii, ZhETF, Sov. Phys. 81, 768 (1981)
  • 7. V.V. Andrievskii, A.Yu. Rozheshchenko, and Yu.F. Komnik, M. Myronov, O.A. Mironov, T.E. Whall, Low Temp. Phys. 29, 318 (2003)
  • 8. S. Hershfield, V. Ambegaokar, Phys. Rev. B 34, 2147 (1986)
  • 9. V. Karpus, Sov. Phys.-Semicond. 20, 6 (1986)
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv119n242kz
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