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Type of Publication: | Journal article |
URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-92675 |
Author: | Nowak, Ulrich; Usadel, Klaus-Dieter |
Year of publication: | 1998 |
Published in: | Europhysics Letters ; 44 (1998), 5. - pp. 634-640 |
Summary: |
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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PACS Classification: | 68.35Rh -; 75.40Mg -; 75.10Hk - |
Subject (DDC): | 530 Physics |
Link to License: | In Copyright |
NOWAK, Ulrich, Klaus-Dieter USADEL, 1998. Influence of the temperature on the depinning transition of driven interfaces. In: Europhysics Letters. 44(5), pp. 634-640
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