薄膜・微粒子・多層膜・人工格子
原子拡散を利用したフラット・パターニング法による[001] L10-FePtRh強磁性-反強磁性パターンの作製
2012 年 36 巻 2 号 p. 104-108
詳細
2012 年 36 巻 2 号 p. 104-108
A flat-patterning method that exploits ferromagnetic (FM)-antiferromagnetic (AF) transition in [001]-oriented L10 FePt1-xRhx films was investigated. FM-AF patterns with several dot diameters (D) were fabricated by locally diffusing a small percentage of FePt atoms onto the FePt1-xRhx film. The geometric and magnetic properties of the patterns were analyzed in detail. Only areas whose composition crossed the FM-AF threshold underwent a magnetic phase change to the FM phase. FM dots with single-domain structures were observed by magnetic force microscopy in the AF matrix in a range of D ≤ 100 nm.
