ORDERING AND LAYER COMPOSITION AT THE CU3AU(110) SURFACE

被引：35

作者：

MCRAE, EG ^{[1
]}

BUCK, TM ^{[1
]}

MALIC, RA ^{[1
]}

WALLACE, WE ^{[1
]}

SANCHEZ, JM ^{[1
]}

机构：

[1] UNIV TEXAS,CTR MAT SCI & ENGN,AUSTIN,TX 78712

来源：

SURFACE SCIENCE | 1990年 / 238卷 / 1-3期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0039-6028(90)90059-H

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Low energy electron diffraction and low energy ion scattering observations on Cu3Au(110) reveal a correlation between surface compositional ordering and the average compositions in the first and second surface atom layers. The surface undergoes a broadened, discontinuous 2 × 1 → 1 × 1 transition at least 6 K below the bulk compositional-disordering transition at 660 K, while near 660 K the values of Au atom fractions in the first (second) atom layers approach 0.35 (0.35) starting from 0.45 (0.20) below 400 K. © 1990.

引用

页码：L481 / L485

页数：5

共 25 条

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