Soft versus Hard Dynamics for Field-driven Solid-on-Solid Interfaces

Details Soft versus Hard Dynamics for Field-driven Solid-on-Solid Interfaces Soft versus Hard Dynamics for Field-driven Solid-on-Solid Interfaces

2001-07-30

arxiv.org/abs/cond-mat/0107615v3

J. Phys. A: Math. Gen. 35, L117-L123 (2002)

Physics

Condensed Matter

Statistical Mechanics

9 pages LaTex with imbedded .eps figs. Minor revisions

Scientific paper

10.1088/0305-4470/35/9/102

Analytical arguments and dynamic Monte Carlo simulations show that the microstructure of field-driven Solid-on-Solid interfaces depends strongly on the dynamics. For nonconservative dynamics with transition rates that factorize into parts dependent only on the changes in interaction energy and field energy, respectively (soft dynamics), the intrinsic interface width is field-independent. For non-factorizing rates, such as the standard Glauber and Metropolis algorithms (hard dynamics), it increases with the field. Consequences for the interface velocity and its anisotropy are discussed.

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