Interlayer self-diffusion on stepped Pt(111)

被引：110

作者：

Feibelman, PJ ^{[1
]}

机构：

[1] Sandia Natl Labs, Albuquerque, NM 87185 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.81.168

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Challenging our understanding of epitaxy on clean and O-precovered Pt(111), the ab initio Schwoebel barrier calculated for downward self-diffusion across A-type steps on Pt(111) is only E-S(A) approximate to 0.02 eV. Geometric arguments explain why E-S(B), the Schwoebel barrier at B-type steps, is more than an order of magnitude larger than E-S(A).

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页码：168 / 171

页数：4

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