Room-temperature electron spin dynamics in GaAs/AlGaAs quantum wells

Atsushi Tackeuchi; Yuji Nishikawa; Osamu Wada

doi:10.1063/1.116536

Room-temperature electron spin dynamics in GaAs/AlGaAs quantum wells

Atsushi Tackeuchi^*, Yuji Nishikawa, Osamu Wada

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

81 Citations (Scopus)

Abstract

We have investigated the spin relaxation process of electron at room temperature in nominally undoped GaAs/AlGaAs multiple-quantum wells. The spin relaxation times are measured for different well thicknesses using time-resolved polarization absorption measurement. The spin relaxation time τs, is found to depend on the electron confined energy E1e, according to τs∝E1e-2.2, showing that the main spin relaxation mechanism at room temperature is the D'yakonov-Perel' interaction.

Original language	English
Pages (from-to)	797-799
Number of pages	3
Journal	Applied Physics Letters
Volume	68
Issue number	6
DOIs	https://doi.org/10.1063/1.116536
Publication status	Published - 1996 Dec 1
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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abstract = "We have investigated the spin relaxation process of electron at room temperature in nominally undoped GaAs/AlGaAs multiple-quantum wells. The spin relaxation times are measured for different well thicknesses using time-resolved polarization absorption measurement. The spin relaxation time τs, is found to depend on the electron confined energy E1e, according to τs∝E1e-2.2, showing that the main spin relaxation mechanism at room temperature is the D'yakonov-Perel' interaction.",

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year = "1996",

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AU - Tackeuchi, Atsushi

AU - Nishikawa, Yuji

AU - Wada, Osamu

PY - 1996/12/1

Y1 - 1996/12/1

N2 - We have investigated the spin relaxation process of electron at room temperature in nominally undoped GaAs/AlGaAs multiple-quantum wells. The spin relaxation times are measured for different well thicknesses using time-resolved polarization absorption measurement. The spin relaxation time τs, is found to depend on the electron confined energy E1e, according to τs∝E1e-2.2, showing that the main spin relaxation mechanism at room temperature is the D'yakonov-Perel' interaction.

AB - We have investigated the spin relaxation process of electron at room temperature in nominally undoped GaAs/AlGaAs multiple-quantum wells. The spin relaxation times are measured for different well thicknesses using time-resolved polarization absorption measurement. The spin relaxation time τs, is found to depend on the electron confined energy E1e, according to τs∝E1e-2.2, showing that the main spin relaxation mechanism at room temperature is the D'yakonov-Perel' interaction.

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Room-temperature electron spin dynamics in GaAs/AlGaAs quantum wells

Abstract

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