DETERMINATION OF STEP-EDGE BARRIERS TO INTERLAYER TRANSPORT FROM SURFACE-MORPHOLOGY DURING THE INITIAL-STAGES OF HOMOEPITAXIAL GROWTH

被引:47
作者
SMILAUER, P
HARRIS, S
机构
[1] UNIV LONDON IMPERIAL COLL SCI TECHNOL & MED, BLACKETT LAB, INTERDISCIPLINARY RES CTR SEMICOND MAT, LONDON SW7 2BZ, ENGLAND
[2] SUNY STONY BROOK, COLL ENGN & APPL SCI, STONY BROOK, NY 11794 USA
[3] UNIV LONDON IMPERIAL COLL SCI TECHNOL & MED, DEPT PHYS, LONDON SW7 2BZ, ENGLAND
来源
PHYSICAL REVIEW B | 1995年 / 51卷 / 20期
关键词
D O I
10.1103/PhysRevB.51.14798
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We use analytic formulas obtained from a simple model of crystal growth by molecular-beam epitaxy to determine step-edge barriers to interlayer transport. The method is based on information about the surface morphology at the onset of nucleation on top of first-layer islands in the submonolayer coverage regime of homoepitaxial growth. The formulas are tested using kinetic Monte Carlo simulations of a solid-on-solid model and applied to estimate step-edge barriers from scanning-tunneling microscopy data on initial stages of Fe(001), Pt(111), and Ag(111) homoepitaxy. © 1995 The American Physical Society.
引用
收藏
页码:14798 / 14801
页数:4
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