Magnetic behavior and local electronic structure of Ce2Ni3Si5 and CeNi4B

被引：5

作者：

Mazumdar, C ^{[1
]}

Hu, Z ^{[1
]}

Kaindl, G ^{[1
]}

机构：

[1] Free Univ Berlin, Inst Expt Phys, D-14195 Berlin, Germany

来源：

PHYSICA B-CONDENSED MATTER | 1999年 / 259-61卷

关键词：

XANES; magnetism; rare earth compounds;

D O I：

10.1016/S0921-4526(98)01095-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report on the results of magnetic susceptibility (2-300 K) and X-ray absorption near-edge structure (XANES) studies of the two polycrystalline compounds Ce2Ni3Si5 and CeNi4B. XANES spectra at the Ce-M-IV,M-V threshold exhibit the signature of mixed valence behavior of Ce in both compounds, with a larger 4f(1) occupancy in Ce2Ni3Si5 in agreement with the magnetic results. Ni-L-II,L-III XANES spectra of the two compounds reveal a 3d(9) configuration of Ni in the ground state of both compounds. The 3d band, however, is more strongly delocalized in Ce2Ni3Si5. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：89 / 91

页数：3

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