Magnetic spectroscopy at high pressures using X-ray magnetic circular dichroism

被引：17

作者：

Haskel, Daniel ^{[1
]}

Tseng, Y. C. ^{[1
]}

Souza-Neto, N. M. ^{[1
]}

Lang, J. C. ^{[1
]}

Sinogeikin, S. ^{[2
]}

Mudryk, Ya. ^{[3
]}

Gschneidner, K. A., Jr. ^{[3
]}

Pecharsky, V. K. ^{[3
]}

机构：

[1] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

[2] Carnegie Inst Sci, HPCAT, Argonne, IL USA

[3] Iowa State Univ, Ames Lab, Mat & Engn Phys Program, Ames, IA USA

来源：

HIGH PRESSURE RESEARCH | 2008年 / 28卷 / 03期

关键词：

magnetism; X-ray magnetic circular dichroism; XMCD; synchrotron radiation; X-ray absorption;

D O I：

10.1080/08957950802020307

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The imbalance in the electronic density of states between spin-up and spin-down electrons characteristic of ferro(ferri)-magnetic materials gives rise to X-ray magnetic circular dichroism (XMCD) in the absorption of circularly polarized X-rays with opposite helicity. These dichroic effects are largest near element-selective atomic resonances and can be used to probe ferro(ferri)-magnetic ordering with element- and electronic orbital-selectivity. We describe recent developments at the Advanced Photon Source that allow measurements of XMCD in a diamond anvil cell. We discuss the challenges associated with these measurements as well as their potential to further our understanding of complex magnetic materials.

引用

页码：185 / 192

页数：8

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