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Some Remarks on the Random Field Ising Model on a Lattice
Author(s) -
Nattermann T.
Publication year - 1985
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221320112
Subject(s) - ising model , statistical physics , metastability , lattice (music) , condensed matter physics , physics , random field , surface finish , mathematics , materials science , quantum mechanics , statistics , acoustics , composite material
It is suggested that domain wall roughening due to random fields in lsing‐like systems is different for lattice and continuum models. It is shown quite generally, that this is incorrect for dimensions d ≦ 3; on a sufficiently large scale the scale dependence of the wall roughness and the interface tension are identical for both types of models. This may have consequences for metastability and hysteresis effects.