Spin relaxation in a quantum well by phonon scatterings

Akera, Hiroshi; Suzuura, Hidekatsu; Egami, Yoshiyuki

Physical review B, 2015, 92(20), 205311

Permalink : https://hdl.handle.net/2115/60513

このアイテムのアクセス数:903件（2026-08-10 17:43 集計）

ファイル	フォーマット	サイズ	閲覧回数	説明
PhysRevB.92.205311	pdf	203 KB	887

アクセス権	open access
URI	https://hdl.handle.net/2115/60513
タイトル	Spin relaxation in a quantum well by phonon scatterings
著者	Akera, Hiroshi ; Suzuura, Hidekatsu ; Egami, Yoshiyuki
e-Rad_Researcher 20184129 著者名 Akera, Hiroshi
e-Rad_Researcher 10282683 著者名 Suzuura, Hidekatsu
著者名 Egami, Yoshiyuki
言語	英語
発行日	2015-11-15
出版者	American Physical Society (APS)
収録物名	Physical review B
巻(号)	92(20)
ページ	205311
抄録	The spin relaxation due to the spin-orbit interaction (SOI) is studied theoretically in a quantum well with electrons occupying only the ground subband. First, it is shown that the coefficient of the Rashba SOI is proportional to b(off) - 1, in which the parameter boff, determined by the band offsets and the band gaps, passes through unity, for example, by changing x in Ga0.47In0.53As(well)/AlxGa1-xAsySb1-y (barrier). Second, it is derived that the transition matrix element of each spin-flip phonon scattering has the same proportionality factor b(off) - 1, in addition to the impurity scattering previously studied by the same authors [Phys. Rev. B 89, 075314 (2014)]. These findings suggest the possibility of strongly suppressing the spin-relaxation rate by choosing appropriate materials.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	©2015 American Physical Society
PISSN	1098-0121
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1103/PhysRevB.92.205311