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

Atsushi Tackeuchi, Yuji Nishikawa, Osamu Wada

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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.

Original languageEnglish
Pages (from-to)797-799
Number of pages3
JournalApplied Physics Letters
Volume68
Issue number6
DOIs
Publication statusPublished - 1996 Dec 1

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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