STUDIES OF LAALO3(100) SURFACES USING RHEED AND REM .2. 5X5 SURFACE RECONSTRUCTION

被引：24

作者：

WANG, ZL ^{[1
]}

SHAPIRO, AJ ^{[1
]}

机构：

[1] NATL INST STAND & TECHNOL,GAITHERSBURG,MD 20899

来源：

SURFACE SCIENCE | 1995年 / 328卷 / 1-2期

关键词：

LANTHANUM-ALUMINATE; REFLECTION ELECTRON MICROSCOPY (REM); STEPPED SINGLE CRYSTAL SURFACES; SURFACE STRUCTURE; MORPHOLOGY; ROUGHNESS; AND TOPOGRAPHY;

D O I：

10.1016/0039-6028(95)00015-1

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：

For the first time, 5 X 5 surface reconstruction on annealed LaAlO3{100} surfaces is observed with reflection high-energy electron diffraction (RHEED) and reflection electron microscopy (REM). Most of the {100} surface areas are covered by the reconstructed layer. The presence of twin boundaries and protrusion contaminants on the surface has no influence on the formation of the reconstruction. Surface steps may enhance the surface reconstruction but are not essential to initiate the reconstruction. This feature is interpreted based on the adsorption models of oxygen on surface steps.

引用

页码：159 / 169

页数：11

共 11 条

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