Self-organization, shape transition, and stability of epitaxially strained islands

2000 ◽  
Vol 61 (15) ◽  
pp. 10388-10392 ◽  
Author(s):  
Y. W. Zhang
Keyword(s):  
Self Organization ◽  
Shape Transition

Shape Transition of InAs Islands on InP (111)A

2000 ◽  
Vol 618 ◽  
Author(s):  
Hanxuan Li ◽  
Theda Daniels-Race ◽  
Mohamed-Ali Hasan
Keyword(s):  
Quantum Dots ◽  
Atomic Force Microscopy ◽  
Aspect Ratio ◽  
Critical Size ◽  
The Self ◽  
Self Organization ◽  
Shape Transition ◽  
Force Microscopy ◽  
Atomic Force

ABSTRACTAtomic force microscopy (AFM) reveals that InAs islands grown on InP (111)A, as they grow in size, undergo a shape transition. Below a critical size of around 30 nm, round-shaped quantum dots form, while above this size they grow in the shape of triangles, reflecting the symmetry of the (111) substrates. The edges of triangular islands are aligned along the three equivalent {110} directions of the InP (111) surface. The triangular islands grow laterally much faster than vertically, indicating the aspect ratio decrease of the islands with increasing InAs coverage. Our results provide a better understanding of the self-organization behaviors of InAs on InP (111)A.

Review of Self-Organization and Clinical Psychology.

1994 ◽  
Vol 39 (9) ◽  
pp. 916-916
Author(s):  
Terri Gullickson
Keyword(s):  
Clinical Psychology ◽  
Self Organization

Schizophrenia, Dynamics and Self-Organization

1996 ◽  
Author(s):  
Z. Kupper ◽  
W. Tschacher ◽  
H. Hoffmann
Keyword(s):  
Self Organization

Neural self-organization of auditory categories

1991 ◽  
Author(s):  
Jamshed J. Bharucha ◽  
W. Einar Mencl
Keyword(s):  
Self Organization
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