X-ray magnetic circular dichroism at rare-earth L2,3 absorption edges in various Ce and Gd compounds and alloys

被引：3

作者：

Shpak, A. P. ^{[1
]}

Antonov, V. N. ^{[1
,2
]}

Kukusta, D. A. ^{[1
]}

Yaresko, A. N. ^{[2
]}

Bekenov, L. V. ^{[1
]}

机构：

[1] Inst Met Phys, UA-03142 Kiev, Ukraine

[2] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

来源：

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA | 2010年 / 181卷 / 2-3期

关键词：

Electronic structure; Rare-earth compounds; Magnetic moment; X-ray magnetic circular dichroism; SPECTRA; CERH3B2; CEFE2;

D O I：

10.1016/j.elspec.2010.06.004

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The X-ray magnetic circular dichroism spectra at the rare-earth L-2,L-3 absorption edges in CeFe2, Ce(CoxFe1-x)(2), CeRh3B2, GdN, GdTiGe, and GdTiSi are investigated theoretically from first principles, using the fully relativistic Dirac LMTO band structure method. The electronic structure is obtained with the local spin-density approximation (LSDA), as well as the LSDA+U method. The origin of the L-2,L-3 XMCD spectra in the compounds is examined. The core-hole effect in the final states as well as the effect of the electric quadrupole E-2 and magnetic dipole M-1 transitions have been investigated. The calculated results are compared with available experimental data. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：173 / 176

页数：4

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