GAMMA-ALPHA-PHASE TRANSITION OF MONOLAYER CE ON W(110)

被引：31

作者：

GU, C ^{[1
]}

WU, X ^{[1
]}

OLSON, CG ^{[1
]}

LYNCH, DW ^{[1
]}

机构：

[1] IOWA STATE UNIV SCI & TECHNOL,DEPT PHYS & ASTRON,AMES,IA 50011

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.67.1622

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

As Ce is adsorbed on a W(110) substrate at 300 K an epitaxial layer develops at a coverage of 0.5 monolayer. LEED patterns indicate a hexagonal pattern consistent with Ce(111). As Ce is added, the lattice parameter shrinks continuously from 9% larger than that for gamma-Ce to 3% smaller than that for alpha-Ce. 4f photoelectron spectra reveal two peaks similar to those of gamma-Ce, changing relative intensity with increasing coverage to resemble those of alpha-Ce.

引用

页码：1622 / 1625

页数：4

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