| Issue |
Europhys. Lett.
Volume 44, Number 5, December I 1998
|
|
|---|---|---|
| Page(s) | 634 - 640 | |
| Section | Condensed matter: structure, thermal and mechanical properties | |
| DOI | https://doi.org/10.1209/epl/i1998-00519-4 | |
| Published online | 01 September 2002 | |
Influence of temperature on the depinning transition of driven interfaces
Theoretische Tieftemperaturphysik, Gerhard-Mercator-Universität-Duisburg, 47048 Duisburg, Germany
Received:
4
August
1998
Accepted:
8
October
1998
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 
for the exponent which
determines the dependence of v on the driving field, 
for the exponent of the correlation length and 
for the exponent which determines the dependence of v on T.
PACS: 68.35.Rh – Phase transitions and critical phenomena / 75.10.Hk – Classical spin models / 75.40.Mg – Numerical simulation studies
© EDP Sciences, 1998
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