Transient analysis of oblique Hanle signals observed in GaAs

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

doi:10.7567/JJAP.55.04EN03


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Transient analysis of oblique Hanle signals observed in GaAs

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/64919

Title:	Transient analysis of oblique Hanle signals observed in GaAs
Authors:	Lin, Zhichao Browse this author
	Kondo, Kenji Browse this author →KAKEN DB
	Yamamoto, Masafumi Browse this author →KAKEN DB
	Uemura, Tetsuya Browse this author →KAKEN DB
Issue Date:	Apr-2016
Publisher:	IOP Publishing
Journal Title:	Japanese Journal of Applied Physics (JJAP)
Volume:	55
Issue:	4
Start Page:	04EN03-1
End Page:	04EN03-5
Publisher DOI:	10.7567/JJAP.55.04EN03
Abstract:	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
Rights:	© 2016 The Japan Society of Applied Physics
Type:	article (author version)
URI:	http://hdl.handle.net/2115/64919
Appears in Collections:	情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 植村哲也

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