Influence of the temperature on the depinning transition of driven interfaces
Influence of the temperature on the depinning transition of driven interfaces
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1998
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Usadel, Klaus-Dieter
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Europhysics Letters ; 44 (1998), 5. - pp. 634-640
Abstract
We study the dynamics of a driven interface in a two-dimensional random-field Ising model close to the depinning transition at small but finite temperatures T using Glauber dynamics. A square lattice is considered with an interface initially in the (11)-direction. The drift velocity v is analyzed using finite-size scaling at T = 0 and additionally finite-temperature scaling close to the depinning transition. In both cases a perfect data collapse is obtained from which we deduce β approx 1/3 for the exponent which determines the dependence of v on the driving field, ν approx 1 for the exponent of the correlation length and δ approx 5 for the exponent which determines the dependence of v on T.
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NOWAK, Ulrich, Klaus-Dieter USADEL, 1998. Influence of the temperature on the depinning transition of driven interfaces. In: Europhysics Letters. 44(5), pp. 634-640BibTex
@article{Nowak1998Influ-4827, year={1998}, title={Influence of the temperature on the depinning transition of driven interfaces}, number={5}, volume={44}, journal={Europhysics Letters}, pages={634--640}, author={Nowak, Ulrich and Usadel, Klaus-Dieter} }
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