PHOTOEMISSION IN YBCU2SI2 - PROBLEMS WITH THE KONDO IMPURITY MODEL

被引：15

作者：

LAWRENCE, JM ^{[1
]}

ARKO, AJ ^{[1
]}

JOYCE, JJ ^{[1
]}

CANFIELD, PC ^{[1
]}

FISK, Z ^{[1
]}

THOMPSON, JD ^{[1
]}

BARTLETT, RJ ^{[1
]}

机构：

[1] UNIV CALIF IRVINE,DEPT PHYS,IRVINE,CA 92717

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1992年 / 108卷 / 1-3期

关键词：

D O I：

10.1016/0304-8853(92)91417-R

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report valence band photoemission results for YbCu2Si2. The 4f13(J = 7/2) final state peak, centered 60 meV below the Fermi level epsilon(F), lacks the temperature dependence and is broader than predicted for a Kondo resonance. Together with recent photoemission results for cerium compounds, these results raise serious doubts about the Kondo impurity explanation of heavy fermion photoemission.

引用

页码：215 / 216

页数：2

共 7 条

[1] ELECTRONIC-STRUCTURE OF CERIUM AND LIGHT RARE-EARTH INTERMETALLICS [J].