STEP AND KINK ENERGETICS ON GAAS(001)

被引：78

作者：

HELLER, EJ

ZHANG, ZY

LAGALLY, MG

机构：

[1] University of Wisconsin Madison, Madison

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.71.743

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Scanning tunneling microscopy images of the equilibrium structure of A- and B-type steps on vicinal GaAs(001) with the (2x4)/c(2x8) reconstruction have been analyzed to determine edge and kink energies. The values of the edge energies are low (implying that the equilibrium steps will be quite rough at room temperature), and anisotropic by a ratio of approximately 6:1. The data provide evidence for a kink-kink interaction, found only in the A steps, which is short range and repulsive.

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页码：743 / 746

页数：4

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