Voltage-induced coercivity change in FePt/MgO stacks with different FePt thicknesses

研究成果: Article査読

14 被引用数 (Scopus)

抄録

We studied magnetic properties by applying electric voltage (V app) to FePt/MgO stacks with different FePt thicknesses (t FePt), where tFePt was varied in the range from 0.6 to 1.5 nm. The change in coercivity (Hc) became remarkable when t FePt was reduced, and a change in Hc of 45 Oe was achieved for tFePt = 0.6 nm by changing Vapp in the range from +5 to -13 V. However, the resistance change of the anomalous Hall effect remained almost constant regardless of Vapp. These experimental results suggest the possibility of interface magnetic anisotropy between FePt and MgO being modulated in the present devices by applying Vapp, which leads to voltage-induced change in Hc in the FePt layer.

本文言語English
論文番号285002
ジャーナルJournal of Physics D: Applied Physics
46
28
DOI
出版ステータスPublished - 2013 7 17

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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