NATURE OF EXTRA-ATOMIC CORE-HOLE SCREENING IN FERROMAGNETIC NICKEL

被引：23

作者：

SEE, AK ^{[1
]}

KLEBANOFF, LE ^{[1
]}

机构：

[1] LEHIGH UNIV,ZETTLEMOYER CTR SURFACE STUDIES,BETHLEHEM,PA 18015

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.74.1454

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Spin-resolved studies of Ni core-level photoemission are reported. The results indicate that the final-state Ni 3 d electron configuration in not purely 3d10, in contradiction with early theories emphasizing complete 3d-electron core-hole screening. A model is described in which extra-atomic screening involving unoccupied pure 3d states and unpolarized and hybridized 3d- 4sp states leads qualitatively to a final-state 3d valence configuration of 50% 3d9 and 50% 3d10. The relationship of these results to more recent theory employing the Anderson impurity model is discussed. © 1995 The American Physical Society.

引用

页码：1454 / 1457

页数：4

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