High-resolution temperature-dependent photoemission study of Kondo semimetal CeNiSn

被引：1

作者：

Takeda, Y ^{[1
]}

Arita, M

Shimada, K

Sato, H

Namatame, H

Taniguchi, M

Echizen, Y

Iga, F

Takabatake, T

机构：

[1] Hiroshima Univ, Fac Sci, Higashihiroshima 7398526, Japan

[2] Hiroshima Univ, Hiroshima Synchrotron Radiat Ctr, Higashihiroshima 7398526, Japan

来源：

PHYSICA B-CONDENSED MATTER | 2000年 / 281卷

关键词：

photoemission spectroscopy; Kondo semimetal; CeNiSn;

D O I：

10.1016/S0921-4526(99)01195-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The temperature dependence of the electronic slates of Kondo semimetal CeNiSn has been studied by high-resolution photoemission spectroscopy. The results have been compared with those of LaNiSn. The temperature-dependent spectral weight reduction of CeNiSn is observed below 30 K at binding energies between similar to 20 meV and E-F, and is similar to that of the Kondo insulator Ce3Bi4Pt3. This behavior is not observed For LaNiSn. The spectral intensity of Ce 4f derived state near the Fermi level (E-F) is enhanced at temperatures above a characteristic temperature, but the spectral intensity at E-F is reduced at 7 K. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：286 / 287

页数：2

共 29 条

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