Critical nuclei shapes in the stress-driven 2D-to-3D transition

被引：67

作者：

Chen, KM ^{[1
]}

Jesson, DE ^{[1
]}

Pennycook, SJ ^{[1
]}

Thundat, T ^{[1
]}

Warmack, RJ ^{[1
]}

机构：

[1] OAK RIDGE NATL LAB, HLTH SCI RES DIV, OAK RIDGE, TN 37831 USA

来源：

PHYSICAL REVIEW B | 1997年 / 56卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.56.R1700

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate the kinetic pathways to coherent island formation during the stress-driven roughening of strained films, and specifically examine the role of facets during island nucleation. Despite the ubiquitous appearance of {501} facets in the Si-Ge system, we show that for Ge0.5Si0.5 strained layers, the initial islanding pathway does not involve discrete {501} facets. A kinetic model based on interacting surface steps is developed, which explains the observed pathway and is consistent with the sensitive dependence of the 2D-3D transition on temperature and the sign of misfit.

引用

页码：R1700 / R1703

页数：4

共 19 条

[1] SPONTANEOUS FORMATION OF STRESS DOMAINS ON CRYSTAL-SURFACES [J].

ALERHAND, OL ;

VANDERBILT, D ;

MEADE, RD ;

JOANNOPOULOS, JD .

PHYSICAL REVIEW LETTERS, 1988, 61 (17) :1973-1976

[2] STEP CAPILLARY WAVES AND EQUILIBRIUM ISLAND SHAPES ON SI(001) [J].

BARTELT, NC ;

TROMP, RM ;

WILLIAMS, ED .

PHYSICAL REVIEW LETTERS, 1994, 73 (12) :1656-1659

[3] STEP INSTABILITIES - A NEW KINETIC ROUTE TO 3D GROWTH [J].

CHEN, KM ;

JESSON, DE ;

PENNYCOOK, SJ ;

MOSTOLLER, M ;

KAPLAN, T ;

THUNDAT, T ;

WARMACK, RJ .

PHYSICAL REVIEW LETTERS, 1995, 75 (08) :1582-1585

[4]

Christian J.W., 1975, THEORY TRANSFORMATIO, P418

[5] DISLOCATION-FREE STRANSKI-KRASTANOW GROWTH OF GE ON SI(100) [J].

EAGLESHAM, DJ ;

CERULLO, M .

PHYSICAL REVIEW LETTERS, 1990, 64 (16) :1943-1946

[6] A BOUNDARY PERTURBATION ANALYSIS FOR ELASTIC INCLUSIONS AND INTERFACES [J].

GAO, HJ .

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 1991, 28 (06) :703-725

[7]

Grinfel'd M. A., 1986, Soviet Physics - Doklady, V31, P831

[8] CRITICAL LAYER THICKNESS FOR SELF-ASSEMBLED INAS ISLANDS ON GAAS [J].

LEONARD, D ;

POND, K ;

PETROFF, PM .

PHYSICAL REVIEW B, 1994, 50 (16) :11687-11692

[9] FACET FORMATION IN STRAINED SI1-XGEX FILMS [J].

LUTZ, MA ;

FEENSTRA, RM ;

MOONEY, PM ;

TERSOFF, J ;

CHU, JO .

SURFACE SCIENCE, 1994, 316 (03) :L1075-L1080

[10]

MO YW, 1990, PHYS REV LETT, V65, P1020, DOI 10.1142/S0217984990001732

← 1 2 →