Non-universal dynamics of dimer growing interfaces

Details Non-universal dynamics of dimer growing interfaces Non-universal dynamics of dimer growing interfaces

2007-06-23

arxiv.org/abs/0706.3420v2

Phys. Rev. E 76, 031605 (2007)

Physics

Condensed Matter

Statistical Mechanics

11 pages, 7 figures. v2 with some slight corrections

Scientific paper

10.1103/PhysRevE.76.031605

A finite temperature version of body-centered solid-on-solid growth models involving attachment and detachment of dimers is discussed in 1+1 dimensions. The dynamic exponent of the growing interface is studied numerically via the spectrum gap of the underlying evolution operator. The finite size scaling of the latter is found to be affected by a standard surface tension term on which the growth rates depend. This non-universal aspect is also corroborated by the growth behavior observed in large scale simulations. By contrast, the roughening exponent remains robust over wide temperature ranges.

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