Dipolar excitations at the LIII x-ray absorption edges of the heavy rare-earth metals

被引：20

作者：

Brown, S. D. ^{[1
,8
]}

Strange, P. ^{[2
]}

Bouchenoire, L. ^{[1
,8
]}

Zarychta, B. ^{[3
]}

Thompson, P. B. J. ^{[1
,8
]}

Mannix, D. ^{[1
,8
]}

Stockton, S. J. ^{[3
]}

Horne, M. ^{[3
]}

Arola, E. ^{[3
,4
]}

Ebert, H. ^{[5
]}

Szotek, Z. ^{[6
]}

Temmerman, W. M. ^{[6
]}

Fort, D. ^{[7
]}

机构：

[1] European Synchrotron Radiat Facil, XMaS, F-38043 Grenoble, France

[2] Univ Kent, Sch Phys Sci, Canterbury CT2 7NH, Kent, England

[3] Univ Keele, Keele ST5 5BG, Staffs, England

[4] Tampere Univ Technol, Optoelect Res Ctr, FIN-33101 Tampere, Finland

[5] Univ Munich, Dept Chem Phys Chem, D-81377 Munich, Germany

[6] Daresbury Lab, Warrington WA4 4AD, Cheshire, England

[7] Univ Birmingham, Birmingham B15 2TT, W Midlands, England

[8] Univ Liverpool, Liverpool L69 3BX, Merseyside, England

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 24期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevLett.99.247401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report measured dipolar asymmetry ratios at the L(III) edges of the heavy rare-earth metals. The results are compared with a first-principles calculation and excellent agreement is found. A simple model of the scattering is developed, enabling us to reinterpret the resonant x-ray scattering in these materials and to identify the peaks in the asymmetry ratios with features in the spin and orbital moment densities.

引用

页数：4

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