Influence of the Kondo-hole impurities on the electronic structure of CeNiSn and CeRhSb

被引：11

作者：

Slebarski, A

Jezierski, A

Mahl, S

Neumann, H

Borstel, G

机构：

[1] Silesian Univ, Inst Phys, PL-40007 Katowice, Poland

[2] Polish Acad Sci, Inst Mol Phys, PL-60179 Poznan, Poland

[3] Univ Osnabruck, Fachbereich Phys, D-49069 Osnabruck, Germany

来源：

PHYSICAL REVIEW B | 1998年 / 58卷 / 08期

关键词：

D O I：

10.1103/PhysRevB.58.4367

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electronic structure of Ce1-xLaxNiSn and Ce1-xLaxRhSb has been studied by photoelectron spectroscopy. The x-ray excited valence-band spectra are compared with ab initio electronic-structure calculations using the linearized muffin-tin orbital method. The results have been used to compare and contrast the effect of La substitution on the ground state properties of the Kondo insulators CeNiSn and CeRhSb. The Ce 3d x-ray photoemission spectroscopy spectra show evidence for the mixed valence state of Ce in CeRhSb alloys, as also seen for CeNiSn, whereas the spectra for the La substituted (Ce,La)NiSn compounds show only evidence for a purl Ce3+ ground state. We suggest the presence of Kondo-hole states in Ce1-xLaxRhSb.

引用

页码：4367 / 4371

页数：5

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