SINUOUS STEP INSTABILITY ON THE SI(001) SURFACE

被引：68

作者：

TERSOFF, J

PEHLKE, E

机构：

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.68.816

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

On slightly miscut Si(001) surfaces, straight steps are predicted to be unstable against the formation of long-wavelength undulations. These undulations lower the energy, by, in effect, reducing the size of the stress domains; they are thus analogous to the spontaneous step formation proposed by Alerhand et al. However, step undulations are expected to be kinetically favored, and therefore to preempt spontaneous step formation. Moreover, they lead to an unexpected distinct thermodynamic phase in the surface phase diagram at small angles.

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页码：816 / 819

页数：4

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