Transient analysis of oblique Hanle signals observed in GaAs

Lin, Zhichao; Kondo, Kenji; Yamamoto, Masafumi; Uemura, Tetsuya

Transient analysis of oblique Hanle signals observed in GaAs

Lin, Zhichao; Kondo, Kenji; Yamamoto, Masafumi et al.

Japanese Journal of Applied Physics (JJAP), 2016, 55(4), 04EN03-1-04EN03-5

Permalink : https://hdl.handle.net/2115/64919

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アクセス権	open access
URI	https://hdl.handle.net/2115/64919
タイトル	Transient analysis of oblique Hanle signals observed in GaAs
著者	Lin, Zhichao ; Kondo, Kenji ; Yamamoto, Masafumi ; Uemura, Tetsuya
著者名 Lin, Zhichao
e-Rad_Researcher 50360946 著者名 Kondo, Kenji
e-Rad_Researcher 10322835 著者名 Yamamoto, Masafumi
e-Rad_Researcher 20344476 著者名 Uemura, Tetsuya
言語	英語
発行日	2016-04
出版者	IOP Publishing
収録物名	Japanese Journal of Applied Physics (JJAP)
巻(号)	55(4)
ページ	04EN03-1-04EN03-5
抄録	A transient response of nuclear spins in GaAs to a change in a magnetic field was analyzed based on the time evolution of nuclear spin temperature. Simulation results well reproduced our experimental results on transient oblique Hanle signals observed in an all-electrical spin injection device, enabling a quantitative understanding of nuclear spin dynamics in the presence of a hyperfine interaction between nuclei and polarized electrons. Analysis regarding the time evolution of nuclear spin temperature revealed that the hysteretic nature of a nuclear field with respect to the sweep direction of an external field was caused by the delay of time response of nuclear spin temperature to a change in the magnetic field. This analysis provides a deep understanding of nuclear spin dynamics in semiconductors. (C) 2016 The Japan Society of Applied Physics
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	© 2016 The Japan Society of Applied Physics
PISSN	0021-4922
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.7567/JJAP.55.04EN03