Interface roughening with nonlinear surface tension

Details Interface roughening with nonlinear surface tension Interface roughening with nonlinear surface tension

1996-10-01

arxiv.org/abs/cond-mat/9610013v1

Phys. Rev. E 54, 2111 (1996)

Physics

Condensed Matter

Statistical Mechanics

4 pages RevTeX, 1 figure

Scientific paper

10.1103/PhysRevE.54.2111

Using stability arguments, this Brief Report suggests that a term that enhances the surface tension in the presence of large height fluctuations should be included in the Kardar-Parisi-Zhang equation. A one-loop renormalization group analysis then shows for interface dimensions larger than $\simeq 3.3$ an unstable strong-coupling fixed point that enters the system from infinity. The relevance of these results to the roughening transition is discussed.

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