Electronic band structure and Fermi surface of URu2Si2 studied by high-resolution angle-resolved photoemission spectroscopy

被引:4
|
作者
Ito, T [1 ]
Kumigashira, H
Takahashi, T
Haga, Y
Yamamoto, E
Honma, T
Ohkuni, H
Onuki, Y
机构
[1] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan
[2] Japan Atom Energy Res Inst, Adv Sci Res Ctr, Tokai, Ibaraki 3191195, Japan
[3] Osaka Univ, Dept Phys, Toyonaka, Osaka 5600043, Japan
来源
PHYSICA B | 2000年 / 281卷
基金
日本学术振兴会;
关键词
URu2Si2; photoemission spectroscopy; Fermi surface;
D O I
10.1016/S0921-4526(99)00821-2
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We have studied the electronic band structure and the Fermi surface of paramagnetic URu2Si2 with high-resolution angle-resolved photoemission spectroscopy. It was found that Ru 4d bands form a main body of the valence band and exhibit a remarkable energy dispersion in qualitatively good agreement with the band structure calculation. In addition to the dispersive Ru 4d bands, we found a less dispersive band near the Fermi level, which is assigned to the U Sf-Ru 4d hybridized band forming a hole-like Fermi surface at Z point in the Brillouin zone. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码:727 / 728
页数:2
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