Influence of the temperature on the depinning transition of driven interfaces

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Nowak_1998_InfluenceTemperature.pdf
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1998
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Usadel, Klaus-Dieter
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Europhysics Letters. 1998, 44(5), pp. 634-640
Zusammenfassung

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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ISO 690NOWAK, Ulrich, Klaus-Dieter USADEL, 1998. Influence of the temperature on the depinning transition of driven interfaces. In: Europhysics Letters. 1998, 44(5), pp. 634-640
BibTex
@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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