DOUBLE-CHAIN STRUCTURES ON THE SB-TERMINATED GAAS(111)BETA SURFACE

被引：16

作者：

MORIARTY, P ^{[1
]}

BETON, PH ^{[1
]}

WOOLF, DA ^{[1
]}

机构：

[1] UNIV WALES COLL CARDIFF,DEPT PHYS & ASTRON,CARDIFF CR1 3AT,S GLAM,WALES

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.51.7950

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The interaction of Sb with the GaAs(111)B-(2×2) surface has been investigated using scanning tunneling microscopy. Pairs of parallel Sb lines oriented along the 110 directions and separated by three lattice constants are observed. Adjacent pairs are separated by p rows of atoms where p varies between two and five lattice constants. Between the line pairs we observe a pattern of Sb trimers with periodicity m parallel to the chains between three and seven lattice constants, which is determined by the value of p. The predominant unit cell corresponds to a 3×8 reconstruction. The local ordering can be understood in terms of electron counting. © 1995 The American Physical Society.

引用

页码：7950 / 7953

页数：4

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