Individual magnetization reversal of a square dot matrix by common current excitation

Mehrdad Elyasi, Charanjit S. Bhatia, Hyunsoo Yang

研究成果: Article査読

1 被引用数 (Scopus)

抄録

We have proposed a method for magnetization reversal of individual sites of a 2 by 2 matrix of perpendicularly magnetized dots by common current excitation. The spin-polarized current signal consists of a dc-biased ac part followed by a pure dc one. The amplitude of the dc and ac parts of the current, as well as the phase and duration of the ac current, determine the reversal sites through the magnetostatic interaction among the dots. We show that the individual selectivity in magnetization reversal occurs through two consecutive steps, dephasing of the matrix dyadic pairs dynamics followed by nonlinear dephasing of the individual elements. This method can be utilized to increase the storage density of magnetic random access memory by enabling common access for four or more bits.

本文言語English
論文番号295301
ジャーナルJournal of Physics D: Applied Physics
48
29
DOI
出版ステータスPublished - 2015 7 29
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 音響学および超音波学
  • 表面、皮膜および薄膜

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