2016年 第77回応用物理学会秋季学術講演会

講演情報

一般セッション(口頭講演)

10 スピントロニクス・マグネティクス » 10.1 新物質創成(酸化物・ホイスラー・金属磁性体等)

[13a-A22-1~11] 10.1 新物質創成(酸化物・ホイスラー・金属磁性体等)

2016年9月13日(火) 09:00 〜 12:00 A22 (メインホールB)

石橋 隆幸(長岡技科大)

11:00 〜 11:15

[13a-A22-8] Interfacial Exchange Coupling between Transition Metal and MnGa Studied by X-ray Magnetic Circular Dichroism

Jun Okabayashi1、Kazuya Suzuki2、Shigemi Mizukami2 (1.Univ. of Tokyo、2.WPI, Tohoku Univ.)

キーワード:XMCD

Magnetic ordered alloys have attracted significant attention for use as spintronics materials because they are highly likely to exhibit perpendicular magnetic anisotropy (PMA). Ultrathin transition-metal (TM) Fe or Co layers deposited on Mn3-dGa couple ferromagnetically or antiferromagnetically, depending on their compositions. However, the abruptness and element-specific magnetic properties at the interfaces between Mn3-dGa and TM layers must be clarified explicitly. Here, X-ray magnetic circular dichroism (XMCD) is employed to investigate the element-specific magnetic properties at an TM/Mn1.5Ga interface. In particular, we discuss the interfacial coupling, which may be ferromagnetic or antiferromagnetic depending on the annealing of the samples.