SURFACE ELECTRONIC-STRUCTURE OF ALPHA-LIKE CE COMPOUNDS

被引：158

作者：

LAUBSCHAT, C

WESCHKE, E

HOLTZ, C

DOMKE, M

STREBEL, O

KAINDL, G

机构：

[1] Institut F̈r Experimentalphysik, Freie Universität Berlin, D-1000 Berlin 33

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.65.1639

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Photoemission studies with varying degrees of surface sensitivity are reported for the Ce 3d core-level and Ce 4f valence-band regions of the +-like Ce compounds CeIr2, CePd3, and CeRh3. In all cases studied, strong changes of the 4f electronic structure at the surface towards a more localized -like behavior are observed, requiring a reanalysis of previously reported photoemission spectra of +-like Ce compounds. Implications for an improved understanding of the surface-catalytic properties of Ce systems, as well as of the surface-electronic structure of narrow-band materials, are pointed out. © 1990 The American Physical Society.

引用

页码：1639 / 1642

页数：4

共 19 条

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