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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2003, Volume 78, Issue 7, Pages 921–925
(Mi jetpl2631)
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This article is cited in 3 scientific papers (total in 3 papers)
Spin relaxation in the quantized Hall regime in the presence of disorder
S. Dickmannab a Weizmann Institute of Science, Rehovot
b Institute of Solid State Physics, Russian Academy of Sciences
Abstract:
We study the spin relaxation (SR) of a two-dimensional electron gas in the quantized Hall regime and discuss the role of spatial inhomogeneity effects on the relaxation. The results are obtained for small filling factors ($\nu\ll 1$) or when the filling factor is close to an integer. In either case SR times are essentially determined by a smooth random potential. For small $\nu$ we predict a «magneto-confinement» resonance manifested in the enhancement of the SR rate when the Zeeman energy is close to the spacing of confinement sublevels in the low-energy wing of the disorder-broadened Landau level. In the resonant region the $B$-dependence of the SR time has a peculiar non-monotonic shape. If $\nu\simeq 2n+1$, the SR is going non-exponentially. Under typical conditions the calculated SR times range from $10^{-8}$ to $10^{-6}\,$s.
Received: 05.08.2003 Revised: 04.09.2003
Citation:
S. Dickmann, “Spin relaxation in the quantized Hall regime in the presence of disorder”, Pis'ma v Zh. Èksper. Teoret. Fiz., 78:7 (2003), 921–925; JETP Letters, 78:7 (2003), 452–456
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https://www.mathnet.ru/eng/jetpl2631 https://www.mathnet.ru/eng/jetpl/v78/i7/p921
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Abstract page: | 126 | Full-text PDF : | 45 | References: | 43 |
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