Spin transport in ferromagnet/semiconductor/ferromagnet structures with cubic Dresselhaus spin-orbit-interaction

Kondo, Kenji

Spin transport in ferromagnet/semiconductor/ferromagnet structures with cubic Dresselhaus spin-orbit-interaction

Kondo, Kenji

Journal of Applied Physics, 2012, 111(7), 07C713

Permalink : https://hdl.handle.net/2115/49379

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アクセス権	open access
URI	https://hdl.handle.net/2115/49379
タイトル	Spin transport in ferromagnet/semiconductor/ferromagnet structures with cubic Dresselhaus spin-orbit-interaction
著者	e-Rad_Researcher 50360946 著者名 Kondo, Kenji
言語	英語
キーワード	ferromagnetism
	gallium arsenide
	III-V semiconductors
	interface magnetism
	magnetoresistance
	spin polarised transport
	spin-orbit interactions
発行日	2012-04-01
出版者	American Institute of Physics
収録物名	Journal of Applied Physics
巻(号)	111(7)
ページ	07C713
抄録	We have investigated the spin transport in ferromagnet (FM)/semiconductor (SC)/ferromagnet (FM) structures with a central SC barrier region exhibiting cubic Dresselhaus spin-orbit-interaction (SOI). The energy profile of the barrier is assumed to be a square with height V and thickness d along z-direction. The magnetoresistance (MR) ratio has been calculated for three different barriers, GaAs, GaSb, and GaAs without SOI as a function of barrier thickness. We have found that the MR ratio has a negative value for GaAs barrier with SOI except for very thin barrier thickness. In the case of GaSb barrier, the MR ratio changes sign from negative to positive with increasing the barrier thickness. Also, we have calculated the MR ratio with changing the spin coupling constant.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Copyright 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in J. Appl. Phys. 111, 07C713 (2012) and may be found at https://dx.doi.org/10.1063/1.3677799
PISSN	0021-8979
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1063/1.3677799