X-ray magnetic circular dichroism and hard X-ray photoelectron spectroscopy of tetragonal Mn72Ge28 epitaxial thin film

被引：0
|
作者：
Kim, Jinhyeok [1 ]
Mizuguchi, Masaki [1 ,2 ,3 ]
Inami, Nobuhito [4 ,7 ]
Ueno, Tetsuro [4 ,5 ,8 ]
Ueda, Shigenori [6 ]
Takanashi, Koki [1 ,3 ]
机构：
[1] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
[2] Japan Sci & Technol Agcy, CREST, Kawaguchi, Saitama 3320012, Japan
[3] Tohoku Univ, Ctr Spintron Res Network, Sendai, Miyagi 9808577, Japan
[4] High Energy Accelerator Res Org, Tsukuba, Ibaraki 3050801, Japan
[5] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan
[6] Natl Inst Mat Sci, Synchrotron Xray Stn SPring 8, Sayo, Hyogo 6795148, Japan
[7] Nagoya Univ, Nagoya, Aichi 4648601, Japan
[8] Natl Inst Quantum & Radiol Sci & Technol, Sayo, Hyogo 6795148, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS | 2018年 / 57卷 / 04期
基金：
日本学术振兴会; 日本科学技术振兴机构;
关键词：
D O I：
10.7567/JJAP.57.04FN10
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
An epitaxially grown Mn72Ge28 film with a tetragonal crystal structure was fabricated. It was clarified that the film had a perpendicular magnetization and a high perpendicular magnetic anisotropy energy of 14.3 Merg/cm(3). The electronic structure was investigated by X-ray magnetic circular dichroism and hard X-ray photoelectron spectroscopy. The obtained X-ray magnetic circular dichroism spectrum revealed that the Mn orbital magnetic moment governed the magnetocrystalline anisotropy of the Mn72Ge28 film. A doublet structure was observed for the Mn 2p(3/2) peak of hard X-ray photoelectron spectrum, indicating the spin exchange interaction between the 2p core-hole and 3d valence electrons. (C) 2018 The Japan Society of Applied Physics.
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页数：3
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