Magnetic circular X-ray dichroism at pre-peak of Fe K-edge in ferrimagnetic Fe-oxides

被引：6

作者：

Harada, I ^{[1
]}

Suzuki, T ^{[1
]}

Kotani, A ^{[1
]}

机构：

[1] UNIV TOKYO,INST SOLID STATE PHYS,MINATO KU,TOKYO 106,JAPAN

来源：

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA | 1996年 / 78卷

关键词：

D O I：

10.1016/S0368-2048(96)80072-7

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

We propose a mechanism of the magnetic circular X-ray dichroism (MCXD) at the pre-peak of the Fe K-edge in Fe-oxides. It is found that the hybridization between the 3d state and the 4p state of Fe ions at tetrahedral sites through the ligand 2p state is responsible for the weak electric-dipole absorption at the pre-peak while the spin-orbit interaction and the spin polarization in the 3d state play a crucial role in MCXD. The important effects of the configuration interaction as well as of the core hole are discussed in connection with the asymmetric dispersion-type MCXD observed in rare-earth iron garnets and magnetites.

引用

页码：251 / 254

页数：4

共 4 条

[1] CIRCULAR MAGNETIC-X-RAY DICHROISM AT FE K-EDGES IN RARE-EARTH IRON GARNETS [J].

HARADA, I ;

KOTANI, A .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1994, 63 (04) :1285-1288

[2]

KAWATA H, 1994, RESONANT ANOMALOUS X, P557

[3] MAGNETIC CIRCULAR X-RAY DICHROISM AT FE K-EDGE IN FERRIMAGNETIC FE-OXIDES [J].

MARUYAMA, H ;

HARADA, I ;

KOBAYASHI, K ;

YAMAZAKI, H .

PHYSICA B, 1995, 208 (1-4) :760-762

[4] ANGLE DEPENDENCE OF X-RAY MAGNETIC CIRCULAR-DICHROISM AT FE K-EDGE IN RARE-EARTH-IRON-GARNET [J].

YAMAZAKI, H ;

MARUYAMA, H ;

KOBAYASHI, K ;

SHIMOMI, K .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1993, 32 :317-319

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