Mechanism of acoustically induced diffusional structuring of surface adatoms
- Department of Materials Science and Engineering, University of Virginia, Virginia 22904 (United States)
Physical mechanisms of time-averaged structuring of adatoms induced by a standing surface acoustic wave (SAW) on a solid substrate are studied. Despite some similarity with conventional mechanisms based on averaging of fast oscillation-type motion or radiation-pressure effects, we demonstrate that, for diffusional (i.e., strongly damped) adatom motion, the origin of time-averaged structuring is essentially different. The proposed analytical model and kinetic Monte–Carlo (kMC) simulations reveal several distinct structuring regimes and directly relate them to the transient modification of diffusion barriers and adiabatic temperature variations induced by SAW strains.
- OSTI ID:
- 22253948
- Journal Information:
- Applied Physics Letters, Vol. 103, Issue 22; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
Similar Records
Mechanism of acoustically induced diffusional structuring of surface adatoms
Refined BCF-type boundary conditions for mesoscale surface step dynamics
Acoustic Enhancement of Surface Diffusion
Journal Article
·
Mon Nov 25 00:00:00 EST 2013
· Applied Physics Letters
·
OSTI ID:22253948
Refined BCF-type boundary conditions for mesoscale surface step dynamics
Journal Article
·
Wed Jun 24 00:00:00 EDT 2015
· Physical Review. B, Condensed Matter and Materials Physics
·
OSTI ID:22253948
Acoustic Enhancement of Surface Diffusion
Journal Article
·
Thu Apr 25 00:00:00 EDT 2013
· Journal of Physical Chemistry. C
·
OSTI ID:22253948