This title appears in the Scientific Report :
2002
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevB.66.041407 in citations.
Please use the identifier: http://hdl.handle.net/2128/1042 in citations.
Decay characteristics of two-dimensional islands on strongly anisotropic surfaces
Decay characteristics of two-dimensional islands on strongly anisotropic surfaces
We investigate analytically the decay characteristics of two-dimensional islands on strongly anisotropic surfaces. We show that a generic scaling law can always be established in describing the dynamical evolution of such islands, given by Lproportional to(t(0)-t)(beta), where L is the island width,...
Saved in:
Personal Name(s): | Yao, Y. |
---|---|
Ebert, P. / Li, M. / Zhang, Z. / Wang, E. G. | |
Contributing Institute: |
Mikrostrukturforschung; IFF-IMF |
Published in: | Physical Review B Physical review / B, 66 66 (2002 2002) 4 4, S. 041407 041407 |
Imprint: |
College Park, Md.
APS
2002
|
Physical Description: |
041407-1 - 041407-4 |
DOI: |
10.1103/PhysRevB.66.041407 |
Document Type: |
Journal Article |
Research Program: |
Kondensierte Materie |
Series Title: |
Physical Review B
66 |
Subject (ZB): | |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/1042 in citations.
We investigate analytically the decay characteristics of two-dimensional islands on strongly anisotropic surfaces. We show that a generic scaling law can always be established in describing the dynamical evolution of such islands, given by Lproportional to(t(0)-t)(beta), where L is the island width, and t(0) is the lifetime of the islands. The value of the scaling exponent beta in the fast-decay direction is always 1/2 in the low-temperature regime where the decay is quasi-one-directional, irrespective of the specific dominant decaying mechanism involved. At higher temperatures where the decay proceeds effectively in both directions, beta is again a good measure of the dominant microscopic decaying mechanism involved, just like the isotropic case. We discuss these results in connection with recent experiments. |