Anomalous spin dephasing in (110) GaAs quantum wells: Anisotropy and intersubband effects

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Original languageEnglish
Pages (from-to)147405-1-147405-4
JournalPhysical Review Letters
Volume93
Issue number14
Publication statusPublished - 29 Sept 2004

Abstract

The anisotropic spin dephasing in (110) quantum wells (QW) from 6 K up to room temperature was investigated. It was found that intersubband scattering constitutes a new spin dephasing mechanism that is necessary to explain reduced spin lifetimes at elevated temperatures for electron spins along (110). The spin lifetime of spins perpendicular to the growth direction is about one order of magnitude shorter compared to spins along (110). The modification and total suppression of spin oscillations through anisotropic spin dephasing was also analyzed.

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Anomalous spin dephasing in (110) GaAs quantum wells: Anisotropy and intersubband effects. / Döhrmann, Stephanie; Hägele, Daniel; Rudolph, Jörg et al.
In: Physical Review Letters, Vol. 93, No. 14, 29.09.2004, p. 147405-1-147405-4.

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Döhrmann S, Hägele D, Rudolph J, Bichler M, Schuh D, Oestreich M. Anomalous spin dephasing in (110) GaAs quantum wells: Anisotropy and intersubband effects. Physical Review Letters. 2004 Sept 29;93(14):147405-1-147405-4. doi: 10.1103/PhysRevLett.93.147405
Döhrmann, Stephanie ; Hägele, Daniel ; Rudolph, Jörg et al. / Anomalous spin dephasing in (110) GaAs quantum wells : Anisotropy and intersubband effects. In: Physical Review Letters. 2004 ; Vol. 93, No. 14. pp. 147405-1-147405-4.
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T1 - Anomalous spin dephasing in (110) GaAs quantum wells

T2 - Anisotropy and intersubband effects

AU - Döhrmann, Stephanie

AU - Hägele, Daniel

AU - Rudolph, Jörg

AU - Bichler, M.

AU - Schuh, D.

AU - Oestreich, Michael

N1 - Funding information: We gratefully acknowledge most helpful discussions with R. Winkler and financial support by BMBF and DFG (German Science Foundation).

PY - 2004/9/29

Y1 - 2004/9/29

N2 - The anisotropic spin dephasing in (110) quantum wells (QW) from 6 K up to room temperature was investigated. It was found that intersubband scattering constitutes a new spin dephasing mechanism that is necessary to explain reduced spin lifetimes at elevated temperatures for electron spins along (110). The spin lifetime of spins perpendicular to the growth direction is about one order of magnitude shorter compared to spins along (110). The modification and total suppression of spin oscillations through anisotropic spin dephasing was also analyzed.

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