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Interface roughening with nonlinear surface tension

Barbara Drossel
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Abstract

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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Barbara Drossel. 1996-10-01. Interface roughening with nonlinear surface tension. https://doi.org/10.1103/physreve.54.2111

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