Reading and writing of vortex circulation in pseudo-spin-valve ring devices

T. J. Hayward, J. Llandro, R. B. Balsod, J. A.C. Bland, F. J. Castaño, D. Morecroft, C. A. Ross

研究成果: Article査読

12 被引用数 (Scopus)

抄録

The authors present a simple method of reading the circulation direction of vortex states in pseudo-spin-valve ferromagnetic ring devices via magnetoresistance measurements. It is shown that by placing the current contacts asymmetrically onto the structure, the circulation of a vortex state in the hard layer may be read directly from the total resistance of the device. Furthermore, they show that by choosing the direction in which the ring is initially saturated prior to obtaining the vortex state, the vortex circulation may be selectively written to the structure, creating the basis of a working memory element.

本文言語English
論文番号112510
ジャーナルApplied Physics Letters
89
11
DOI
出版ステータスPublished - 2006
外部発表はい

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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