Soft X-ray magnetic circular dichroism of c(2 x 2) CuMn ordered surface alloy

被引：5

作者：

Kimura, A ^{[1
]}

Kanbe, T

Xie, T

Qiao, S

Taniguchi, M

Muro, T

Imada, S

Suga, S

机构：

[1] Hiroshima Univ, Grad Sch Sci, Dept Phys Sci, Higashihiroshima 7398526, Japan

[2] Hiroshima Univ, Hiroshima Synchrotron Radiat Ctr, Higashihiroshima 7398526, Japan

[3] Japan Synchrotron Radiat Res Inst, SPring 8, Mikazuki 6795148, Japan

[4] Osaka Univ, Grad Sch Engn Sci, Div Mat Phys, Toyonaka, Osaka 5608531, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 2003年 / 42卷 / 7B期

关键词：

two-dimensional surface alloy; ferromagnetism; soft X-ray absorption spectroscopy (XAS); soft X-ray magnetic circular dichroism (XMCD); multiplet structure;

D O I：

10.1143/JJAP.42.4692

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Mn 2p soft X-ray absorption (XAS) spectroscopy excited with circularly polarized synchrotron radiation has been applied to a new class of material, c(2 x 2)CuMn/Cu(001) two-dimensional ordered surface alloy. A significant X-ray magnetic circular dichroism (XMCD) signal has been clearly observed at T = 25 K, indicating the existence of the ferromagnetic state under the external magnetic field of 1.4 Tesla. The lineshape analyses of the XAS and XMCD spectra clearly show that the Mn 3d state is rather localized and has a high spin magnetic moment due to its half-filled character.

引用

页码：4692 / 4694

页数：3

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