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

页码：727 / 728

页数：2

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