Modification of the rare-earth magnetic moment upon hydrogen absorption in R-Fe intermetallics probed by Fe K-edge x-ray magnetic circular dichroism

被引：23

作者：

Chaboy, J ^{[1
]}

Garcia, LM

Bartolome, F

Maruyama, H

Marcelli, A

Bozukov, L

机构：

[1] Univ Zaragoza, CSIC, Inst Ciencia Mat Aragon, Zaragoza 50009, Spain

[2] Univ Zaragoza, CSIC, Dept Fis Mat Condensada, Zaragoza 50009, Spain

[3] Okayama Univ, Fac Sci, Dept Phys, Okayama 700, Japan

[4] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[5] Univ Sofia, Fac Phys, Sofia 1126, Bulgaria

来源：

PHYSICAL REVIEW B | 1998年 / 57卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.57.13386

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present a systematic x-ray magnetic circular dichroism (XMCD) study performed at the Fe K edge on the hydride derivatives of several R-Fe intermetallic materials (R=rare earth and Y). The XMCD signal is identified as being rare-earth dependent. The analysis of the dichroic signal I-las been performed according with a two-sublattice model making a parallel to standard magnetization procedure. The contribution of the rare-earth sublattice to the total Fe K-edge XMCD signal has been extracted and proven to be directly correlated to the R magnetic moment, which is determined to decrease upon hydrogen absorption.

引用

页码：13386 / 13389

页数：4

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