Macroscopic and element selective magnetic properties of TbCo/Pd multilayered and single layered film

TbCo/Pd膜のマイクロおよびミクロな磁気的性質

田中 真人*; 朝日 透*; 安居院 あかね; 水牧 仁一朗*; 佐山 淳一*; 逢坂 哲彌*

Tanaka, Masahito*; Asahi, Toru*; Agui, Akane; Mizumaki, Masaichiro*; Sayama, Junichi*; Osaka, Tetsuya*

高密度磁気記録媒体材料の候補であるTbCoとCo/Pd多層膜を組合せたTbCo/Pd多層膜及び単層薄膜についてTbCo相膜厚と磁気的性質の関係を調べた。マクロスコピックな磁気的性質の測定にはVSMをミクロスコピックな磁気的性質の測定には軟X線磁気円2色性吸収測定を用いた。ともにある膜厚さに補償膜厚があることがわかった。

We examined the macroscopic and element selective magnetic properties by Kerr hysteresis loop and X-ray magnetic circular dichroism (MCD) spectroscopy, respectively, of [TbCo]/Pd multilayered films and TbCo single layered films with several TbCo layer thicknesses. We found that the macroscopic magnetic properties of TbCo/Pd and TbCo films were dependent on the TbCo layer thickness by Kerr effect measurement. We estimated the Lz, Sz and Lz/Sz values from MCD measurements at Co L2,3 edges. The values of Lz and Sz of both types of films were the almost same each other, while the clear distinction of Kerr effects was observed.