VALENCE STATE AT THE SURFACE OF RARE-EARTH-METALS

被引：156

作者：

JOHANSSON, B

机构：

[1] Sekt 214, Försvarets Forskningsanstalt

来源：

PHYSICAL REVIEW B | 1979年 / 19卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.19.6615

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The valence state of a rare-earth metal surface is investigated by using general properties of the surface tension of metals. Thereby it is concluded that samarium is likely to have a divalent or partly divalent surface on top of its trivalent bulk phase, which agrees with recent spectroscopic observations. Also californium metal is discussed from this point of view. Finally, the position of the 4f level in a bulk gold atom as compared to its position in a surface gold atom is briefly discussed. © 1979 The American Physical Society.

引用

页码：6615 / 6619

页数：5

共 25 条

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