Element-selective thermal x-ray magnetic circular dichroism study through the magnetic compensation temperature of Ho6Fe23 -: art. no. 094408

被引：21
作者：
Laguna-Marco, MA
Chaboy, J
Maruyama, H
机构：
[1] Univ Cantabria, CITIMAC, E-39005 Santander, Spain
[2] Univ Zaragoza, CSIC, Inst Ciencia Mat Aragon, E-50009 Zaragoza, Spain
[3] Hiroshima Univ, Grad Sch Sci, Higashihiroshima 7398526, Japan
来源：
PHYSICAL REVIEW B | 2005年 / 72卷 / 09期
关键词：
D O I：
10.1103/PhysRevB.72.094408
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present an x-ray magnetic circular dichroism (XMCD) study performed on both Ho6Fe23 and Y6Fe23 compounds as a function of the temperature. The combined analysis of both Fe K-edge and Ho L-2,L-3-edge XMCD spectra recorded through the magnetic compensation transition allows us to disentangle the thermal dependence of both Fe and Ho magnetic moments in Ho6Fe23. In addition, contributions from Ho ions to the Fe K-edge XMCD signals and, conversely, from Fe ions to the Ho L-2,L-3-edge XMCD spectra have been clearly identified. These extra contributions, arising from the strong Fe(3d)-Ho(5d) hybridization, have been isolated from the spectra and correlated with the magnetic state of both Ho and Fe ions surrounding the absorbing site. The influence of these contributions to the values of the orbital and spin moments derived by using sum rule analysis is also shown.
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页数：9
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