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Double magnetic tunnel junctions with cross-magnetization configurations for electrical detection of domain-wall structures
| Title: | Double magnetic tunnel junctions with cross-magnetization configurations for electrical detection of domain-wall structures |
| Authors: | Uemura, Tetsuya1 Browse this author →KAKEN DB | | Sawada, Keisuke2 Browse this author | | Matsuda, Ken-ichi3 Browse this author →KAKEN DB | | Yamamoto, Masafumi4 Browse this author →KAKEN DB |
| Authors(alt): | 植村, 哲也1 | | 澤田, 圭佑2 | | 松田, 健一3 | | 山本, 眞史4 |
| Keywords: | ferromagnetic materials | | magnetic domain walls | | magnetisation | | micromagnetics | | tunnelling magnetoresistance |
| Issue Date: | 6-Jul-2009 |
| Publisher: | American Institute of Physics |
| Journal Title: | Applied Physics Letters |
| Volume: | 95 |
| Issue: | 1 |
| Start Page: | 012502 |
| Publisher DOI: | 10.1063/1.3168514 |
| Abstract: | 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. |
| Rights: | 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. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/38855 |
| 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)
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Submitter: 植村 哲也
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