Creation of "quantum platelets" via strain-controlled self-organization at steps

被引:42
作者
Li, A [1 ]
Liu, F [1 ]
Petrovykh, DY [1 ]
Lin, JL [1 ]
Viernow, J [1 ]
Himpsel, FJ [1 ]
Lagally, MG [1 ]
机构
[1] Univ Wisconsin, Madison, WI 53706 USA
关键词
D O I
10.1103/PhysRevLett.85.5380
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We demonstrate, by both theory and experiment, the strain-induced self-organized formation of "quantum platelets," monolayer-thick islands of finite dimensions. They form at the early stage of heteroepitaxial growth on a. substrate with regularly spaced steps, and align along the steps. In the direction perpendicular to substrate steps, the island position and spacing can be preselected through substrate miscut. Along the steps, the island size and density are controlled by self-organized growth.
引用
收藏
页码:5380 / 5383
页数:4
相关论文
共 18 条
[1]  
ADAM HM, IN PRESS
[2]   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
[3]  
BALL E, 1958, Z KRISTALLOGR, V110, P372
[4]   Spontaneous formation of ordered structures in thin films of metals supported on an elastomeric polymer [J].
Bowden, N ;
Brittain, S ;
Evans, AG ;
Hutchinson, JW ;
Whitesides, GM .
NATURE, 1998, 393 (6681) :146-149
[5]   Formation of regular step arrays on Si(111)7x7 [J].
Lin, JL ;
Petrovykh, DY ;
Viernow, J ;
Men, FK ;
Seo, DJ ;
Himpsel, FJ .
JOURNAL OF APPLIED PHYSICS, 1998, 84 (01) :255-260
[6]   Self-organization of steps in growth of strained films on vicinal substrates [J].
Liu, F ;
Tersoff, J ;
Lagally, MG .
PHYSICAL REVIEW LETTERS, 1998, 80 (06) :1268-1271
[7]   Self-organized nanoscale structures in Si/Ge films [J].
Liu, F ;
Lagally, MG .
SURFACE SCIENCE, 1997, 386 (1-3) :169-181
[8]   Self-organized replication of 3D coherent island size and shape in multilayer heteroepitaxial films [J].
Liu, F ;
Davenport, SE ;
Evans, HM ;
Lagally, MG .
PHYSICAL REVIEW LETTERS, 1999, 82 (12) :2528-2531
[9]  
MARCHENKO VI, 1980, ZH EKSP TEOR FIZ, V52, P129
[10]   SELF-ORGANIZATION OF CDSE NANOCRYSTALLITES INTO 3-DIMENSIONAL QUANTUM-DOT SUPERLATTICES [J].
MURRAY, CB ;
KAGAN, CR ;
BAWENDI, MG .
SCIENCE, 1995, 270 (5240) :1335-1338