MAGNETIC-X-RAY DICHROISM IN GADOLINIUM METAL

被引:111
|
作者
CARRA, P
HARMON, BN
THOLE, BT
ALTARELLI, M
SAWATZKY, GA
机构
[1] STATE UNIV GRONINGEN,DEPT CHEM PHYS,9747 AG GRONINGEN,NETHERLANDS
[2] STATE UNIV GRONINGEN,CTR MAT SCI,DEPT APPL & SOLID STATE PHYS,9747 AG GRONINGEN,NETHERLANDS
[3] IOWA STATE UNIV SCI & TECHNOL,US DOE,AMES LAB,AMES,IA 50011
[4] IOWA STATE UNIV SCI & TECHNOL,DEPT PHYS,AMES,IA 50011
[5] MAX PLANCK INST FESTKORPERFORSCH,HOCHFELD MAGNET LAB,F-91405 ORSAY,FRANCE
关键词
D O I
10.1103/PhysRevLett.66.2495
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present a calculation of magnetic x-ray dichroism at the L2,3 edges of Gd metal, which takes into account dipolar transitions to the spin-polarized conduction bands, as well as quadrupole transitions to the highly localized 4f states. The striking agreement with the data demonstrates the validity of the single-particle approximation in the whole range of energies, above the Fermi level, probed by the experiments. The quadrupolar dischroism is important in determining the pre-edge structure of the measured spectra. Results for the L2,3 edges of Ho are also briefly discussed.
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页码:2495 / 2498
页数:4
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