L(III) X-RAY-ABSORPTION IN YB COMPOUNDS - TEMPERATURE-DEPENDENCE OF THE VALENCE

被引：69

作者：

LAWRENCE, JM ^{[1
]}

KWEI, GH ^{[1
]}

CANFIELD, PC ^{[1
]}

DEWITT, JG ^{[1
]}

LAWSON, AC ^{[1
]}

机构：

[1] LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545

来源：

PHYSICAL REVIEW B | 1994年 / 49卷 / 03期

关键词：

D O I：

10.1103/PhysRevB.49.1627

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report x-ray-absorption measurements near the Yb L(III) absorption edge of YbAl3, YbCu2Si2, YbAgCu4, and related compounds. Our results suggest that the bulk Yb valence changes with temperature in a manner consistent with predictions of the single impurity Anderson model. We discuss the relationship between these results and recent valence-band photoemission results in the same compounds where the existence of temperature dependence has been disputed.

引用

页码：1627 / 1631

页数：5

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