SURFACE ATOMIC-STRUCTURE OF THE GAAS(001)(2X4) RECONSTRUCTION

被引：15

作者：

BROEKMAN, L

LECKEY, R

RILEY, J

USHER, B

SEXTON, B

机构：

[1] LA TROBE UNIV, SCH PHYS, BUNDOORA, VIC 3083, AUSTRALIA

[2] TELECOM AUSTRALIA RES LABS, CLAYTON, VIC 3168, AUSTRALIA

[3] CSIRO, DIV MAT SCI & TECHNOL, CLAYTON, VIC 3168, AUSTRALIA

来源：

SURFACE SCIENCE | 1995年 / 331卷

关键词：

ARSENIC; GALLIUM; GALLIUM ARSENIDE; SCANNING TUNNELING MICROSCOPY; STEPPED SINGLE CRYSTAL SURFACES; SURFACE RELAXATION AND RECONSTRUCTION; SURFACE STRUCTURE; THERMAL DESORPTION;

D O I：

10.1016/0039-6028(95)00294-4

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：

Atomic resolution STM images of the (2 X 4) reconstruction, are presented which show the existence of at least four distinct surface structures. Two of these correspond to the alpha and beta phases previously modelled from RHEED experiments. The second layer structure within the missing row of the alpha-(2 X 4) phase is clearly resolved in these images Evidence is presented of dimer twist as part of the surface energy minimisation process of one of the alpha phases. We also show images of a previously unreported structure that displays (2 X 4) symmetry.

引用

页码：1115 / 1121

页数：7