Embedding of nanoscale 3D SiGe islands in a Si matrix

被引:131
作者
Sutter, P [1 ]
Lagally, MG [1 ]
机构
[1] Univ Wisconsin, Madison, WI 53706 USA
关键词
D O I
10.1103/PhysRevLett.81.3471
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The epitaxial embedding of faceted three-dimensional SiGe islands in a Si matrix has been investigated by low-energy electron microscopy. Under a Si flux these islands expand and undergo a shape change to incorporate a (100) top facet. A physical interpretation of the atomistic mechanism producing the shape change is presented and supported with a simple model. [S0031-9007(98)07384-0].
引用
收藏
页码:3471 / 3474
页数:4
相关论文
共 17 条
[1]   Ostwald ripening of two-dimensional islands on Si(001) [J].
Bartelt, NC ;
Theis, W ;
Tromp, RM .
PHYSICAL REVIEW B, 1996, 54 (16) :11741-11751
[2]   DISLOCATION-FREE STRANSKI-KRASTANOW GROWTH OF GE ON SI(100) [J].
EAGLESHAM, DJ ;
CERULLO, M .
PHYSICAL REVIEW LETTERS, 1990, 64 (16) :1943-1946
[3]   Intermixing and shape changes during the formation of InAs self-assembled quantum dots [J].
García, JM ;
MedeirosRibeiro, G ;
Schmidt, K ;
Ngo, T ;
Feng, JL ;
Lorke, A ;
Kotthaus, J ;
Petroff, PM .
APPLIED PHYSICS LETTERS, 1997, 71 (14) :2014-2016
[4]   DIFFUSION OF SI INTO GE STUDIED BY CORE LEVEL PHOTOEMISSION [J].
HOEVEN, AJ ;
AARTS, J ;
LARSEN, PK .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1989, 7 (01) :5-8
[5]   Structure and energetics of segregated and nonsegregated Ge(001)/Si(2x1) [J].
Jenkins, SJ ;
Srivastava, GP .
PHYSICAL REVIEW B, 1998, 57 (15) :8794-8796
[6]   EQUILIBRIUM ALLOY PROPERTIES BY DIRECT SIMULATION - OSCILLATORY SEGREGATION AT THE SI-GE(100) 2X1 SURFACE [J].
KELIRES, PC ;
TERSOFF, J .
PHYSICAL REVIEW LETTERS, 1989, 63 (11) :1164-1167
[7]   Direct formation of vertically coupled quantum dots in Stranski-Krastanow growth [J].
Ledentsov, NN ;
Shchukin, VA ;
Grundmann, M ;
Kirstaedter, N ;
Bohrer, J ;
Schmidt, O ;
Bimberg, D ;
Ustinov, VM ;
Egorov, AY ;
Zhukov, AE ;
Kopev, PS ;
Zaitsev, SV ;
Gordeev, NY ;
Alferov, ZI ;
Borovkov, AI ;
Kosogov, AO ;
Ruvimov, SS ;
Werner, P ;
Gosele, U ;
Heydenreich, J .
PHYSICAL REVIEW B, 1996, 54 (12) :8743-8750
[8]   DIRECT FORMATION OF QUANTUM-SIZED DOTS FROM UNIFORM COHERENT ISLANDS OF INGAAS ON GAAS-SURFACES [J].
LEONARD, D ;
KRISHNAMURTHY, M ;
REAVES, CM ;
DENBAARS, SP ;
PETROFF, PM .
APPLIED PHYSICS LETTERS, 1993, 63 (23) :3203-3205
[9]   MORPHOLOGICAL TRANSITION OF INAS ISLANDS ON GAAS(001) UPON DEPOSITION OF A GAAS CAPPING LAYER [J].
LIN, XW ;
WASHBURN, J ;
LILIENTALWEBER, Z ;
WEBER, ER ;
SASAKI, A ;
WAKAHARA, A ;
NABETANI, Y .
APPLIED PHYSICS LETTERS, 1994, 65 (13) :1677-1679
[10]   Mechanism of organization of three-dimensional islands in SiGe/Si multilayers [J].
Mateeva, E ;
Sutter, P ;
Bean, JC ;
Lagally, MG .
APPLIED PHYSICS LETTERS, 1997, 71 (22) :3233-3235