Результаты исследований: Научные публикации в периодических изданиях › статья
Carrier spin dynamics in GaAs/AlGaAs quantum wells with a laterally localizing electric potential. / Cherbunin, R.V.; Kuznetsova, M.S.; Gerlovin, I.Y.; Ignatiev, I.V.; Dolgikh, Y.K.; Efimov, Y.P.; Eliseev, S.A.; Petrov, V.V.; Poltavtsev, S.V.; Larionov, A.V.; Il'In, A.I.
в: Physics of the Solid State, Том 51, № 4, 2009, стр. 837-840.Результаты исследований: Научные публикации в периодических изданиях › статья
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TY - JOUR
T1 - Carrier spin dynamics in GaAs/AlGaAs quantum wells with a laterally localizing electric potential
AU - Cherbunin, R.V.
AU - Kuznetsova, M.S.
AU - Gerlovin, I.Y.
AU - Ignatiev, I.V.
AU - Dolgikh, Y.K.
AU - Efimov, Y.P.
AU - Eliseev, S.A.
AU - Petrov, V.V.
AU - Poltavtsev, S.V.
AU - Larionov, A.V.
AU - Il'In, A.I.
PY - 2009
Y1 - 2009
N2 - The spin orientation dynamics in a GaAs quantum well with a laterally nonuniform electric potential generated by a mosaic electrode deposited on the surface of the sample has been investigated using the photoinduced magneto-optical Kerr effect. It has been found that the application of a negative potential higher than 1 V to the electrode leads to more than a hundredfold increase in the spin polarization lifetime in the sample under study. It is concluded that so strong slowing down of the relaxation is caused by a combined action of two effects, namely, the spatial separation of electron and hole, which reduces the radiative recombination rate of electron-hole pair, and the localization of electron, which is accompanied by the suppression of spin relaxation processes caused by electron motion.
AB - The spin orientation dynamics in a GaAs quantum well with a laterally nonuniform electric potential generated by a mosaic electrode deposited on the surface of the sample has been investigated using the photoinduced magneto-optical Kerr effect. It has been found that the application of a negative potential higher than 1 V to the electrode leads to more than a hundredfold increase in the spin polarization lifetime in the sample under study. It is concluded that so strong slowing down of the relaxation is caused by a combined action of two effects, namely, the spatial separation of electron and hole, which reduces the radiative recombination rate of electron-hole pair, and the localization of electron, which is accompanied by the suppression of spin relaxation processes caused by electron motion.
KW - GaAs quantum well
KW - mosaic electrode
KW - spin life time
KW - spin relaxation processes
KW - Kerr effect
U2 - 10.1134/S1063783409040349
DO - 10.1134/S1063783409040349
M3 - Article
VL - 51
SP - 837
EP - 840
JO - Physics of the Solid State
JF - Physics of the Solid State
SN - 1063-7834
IS - 4
ER -
ID: 5046274