Step-adatom attraction as a new mechanism for instability in epitaxial growth

被引：70

作者：

Amar, JG

Family, F

机构：

[1] Department of Physics, Emory University, Atlanta, GA

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.77.4584

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that short-range attraction of adatoms towards clusters and ascending steps leads to an instability towards mound formation in epitaxial growth. This instability is studied both analytically and via Monte Carlo simulations on bcc/fcc(100) surfaces. The origin of this instability in terms of second-layer nucleation and its implications for surface morphology and interpretation of recent experiments are also discussed.

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页码：4584 / 4587

页数：4

相关论文

共 24 条

[1] Critical temperature for mound formation in molecular-beam epitaxy [J].

Amar, JG ;

Family, F .

PHYSICAL REVIEW B, 1996, 54 (19) :14071-14076

[2] CRITICAL CLUSTER-SIZE - ISLAND MORPHOLOGY AND SIZE DISTRIBUTION IN SUBMONOLAYER EPITAXIAL-GROWTH [J].

AMAR, JG ;

FAMILY, F .

PHYSICAL REVIEW LETTERS, 1995, 74 (11) :2066-2069

[3] Characterization of surface morphology in epitaxial growth [J].

Amar, JG ;

Family, F .

SURFACE SCIENCE, 1996, 365 (01) :177-185

[4]

AMAR JG, 1996, PHYS REV B, V54, P14748

[5]

BIHAM O, IN PRESS

[6] SURFACTANTS IN EPITAXIAL-GROWTH [J].

COPEL, M ;

REUTER, MC ;

KAXIRAS, E ;

TROMP, RM .

PHYSICAL REVIEW LETTERS, 1989, 63 (06) :632-635

[7] THE SURFACE STATISTICS OF A GRANULAR AGGREGATE [J].

EDWARDS, SF ;

WILKINSON, DR .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1982, 381 (1780) :17-31

[8] ATOMIC VIEW OF SURFACE SELF-DIFFUSION - TUNGSTEN ON TUNGSTEN [J].

EHRLICH, G ;

HUDDA, FG .

JOURNAL OF CHEMICAL PHYSICS, 1966, 44 (03) :1039-&

[9]

ELLIOTT WC, IN PRESS

[10] OBSERVATION OF A GROWTH INSTABILITY DURING LOW-TEMPERATURE MOLECULAR-BEAM EPITAXY [J].

ERNST, HJ ;

FABRE, F ;

FOLKERTS, R ;

LAPUJOULADE, J .

PHYSICAL REVIEW LETTERS, 1994, 72 (01) :112-115