Double magnetic tunnel junctions with cross-magnetization configurations for electrical detection of domain-wall structures

Uemura, Tetsuya; Sawada, Keisuke; Matsuda, Ken-ichi; Yamamoto, Masafumi

Double magnetic tunnel junctions with cross-magnetization configurations for electrical detection of domain-wall structures

Uemura, Tetsuya; Sawada, Keisuke; Matsuda, Ken-ichi et al.

Applied Physics Letters, 2009, 95(1), 012502

Permalink : https://hdl.handle.net/2115/38855

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論文情報

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アクセス権	open access
URI	https://hdl.handle.net/2115/38855
タイトル	Double magnetic tunnel junctions with cross-magnetization configurations for electrical detection of domain-wall structures
著者	Uemura, Tetsuya ; Sawada, Keisuke ; Matsuda, Ken-ichi ; Yamamoto, Masafumi
e-Rad_Researcher 20344476 著者名 Uemura, Tetsuya 植村, 哲也
著者名 Sawada, Keisuke 澤田, 圭佑
e-Rad_Researcher 80360931 著者名 Matsuda, Ken-ichi 松田, 健一
e-Rad_Researcher 10322835 著者名 Yamamoto, Masafumi 山本, 眞史
言語	英語
キーワード	ferromagnetic materials
	magnetic domain walls
	magnetisation
	micromagnetics
	tunnelling magnetoresistance
発行日	2009-07-06
出版者	American Institute of Physics
収録物名	Applied Physics Letters
巻(号)	95(1)
ページ	012502
抄録	A device consisting of double magnetic tunnel junctions with cross-magnetization configurations is proposed to enable simultaneous electrical detection of both the structure and motion of a domain-wall (DW). Operation of this device has been confirmed through micromagnetic simulation. Owing to the cross-magnetization configurations, two types of DW structure formed in a ferromagnetic wire were clearly identified: a transverse wall (TW) in which the magnetization at the center of the wall is directed transversely to the wire axis and a vortex wall (VW) in which the magnetization circulates in the plane around a small perpendicular vortex core. In addition to the structural difference between TW and VW, the velocity of the DW motion was detected through the time response of the tunneling magnetoresistance. © 2009 American Institute of Physics.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Copyright 2009 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.
PISSN	0003-6951
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1063/1.3168514