[11p-E214-1~13] 10.1 新物質・新機能創成（作製・評価技術）

13:30 〜 13:45奨励賞エントリー英語発表

[11p-E214-1] Hydrogen control of the anomalous Hall effect in Pd/Co system

〇(M1)Kota Miyaki¹, Toshiaki Morita¹, Daichi Chiba^1,2,3,4,5, Tomohiro Koyama^1,2,3 (1.SANKEN, The Univ. of Osaka, 2.CSRN, The Univ. of Osaka, 3.OTRI, The Univ. of Osaka, 4.SRIS, Tohoku Univ., 5.CSIS, Tohoku Univ.)

キーワード：

hydrogen、anomalous Hall effect、Pd/Co system

We investigated the hydrogen effect on the anomalous Hall effect in Pd/Co thin films. When the films were exposed to hydrogen gas, the Hall resistance changed with hydrogen pressure, and the sign of the AHE reversed at high hydrogen pressure.According to the intrinsic and extrinsic mechanisms of the AHE, the anomalous Hall resistivity depends on the longitudinal resistivity and its square.Hydrogen absorption may alter this balance, potentially causing the sign reversal.