TY - JOUR
T1 - Electron spin relaxation beyond D'yakonov-Perel' interaction in GaAs/AlGaAs quantum wells
AU - Ohno, Y.
AU - Terauchi, R.
AU - Adachi, T.
AU - Matsukura, F.
AU - Ohno, H.
N1 - Funding Information:
The authors wish to thank T. Dietl for valuable discussion. This work is partly supported by “Research for the Future” Program from the Japan Society for the Promotion of Science, and Grant-in Aid for Scientific Research (Nos. 09244103 and 11650002) from the Ministry of Education, Science, Sports, and Culture, Japan.
PY - 2000/2
Y1 - 2000/2
N2 - To study electron spin relaxation mechanisms in GaAs/AlGaAs quantum wells (QWs), undoped and n-doped (1 0 0) and (1 1 0) QWs with different well width and doping density are prepared and measured. The temperature dependence of electron spin relaxation time τs in n-doped (1 0 0) QWs above 30 K is shown to be in good agreement with what is expected from the D'yakonov-Perel' (DP) mechanism. In (1 1 0) QWs, a 30-fold increase of τs over (1 0 0) QWs at room temperature is observed. This dramatic increase is explained by the suppression of the DP mechanism. The remaining spin relaxation processes in (1 1 0) QWs are discussed.
AB - To study electron spin relaxation mechanisms in GaAs/AlGaAs quantum wells (QWs), undoped and n-doped (1 0 0) and (1 1 0) QWs with different well width and doping density are prepared and measured. The temperature dependence of electron spin relaxation time τs in n-doped (1 0 0) QWs above 30 K is shown to be in good agreement with what is expected from the D'yakonov-Perel' (DP) mechanism. In (1 1 0) QWs, a 30-fold increase of τs over (1 0 0) QWs at room temperature is observed. This dramatic increase is explained by the suppression of the DP mechanism. The remaining spin relaxation processes in (1 1 0) QWs are discussed.
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U2 - 10.1016/S1386-9477(99)00251-9
DO - 10.1016/S1386-9477(99)00251-9
M3 - Conference article
AN - SCOPUS:0034139134
SN - 1386-9477
VL - 6
SP - 817
EP - 820
JO - Physica E: Low-Dimensional Systems and Nanostructures
JF - Physica E: Low-Dimensional Systems and Nanostructures
IS - 1
T2 - 13th International Conference on the Electronic Properties of Two-Dimensional Systems (EP2DS-13)
Y2 - 1 August 1999 through 6 August 1999
ER -