First- and second-order phase transitions with random fields at low temperatures

1 March 1983

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 27 (5) , 3079-3080
https://doi.org/10.1103/physrevb.27.3079

Abstract

It is shown, within mean-field theory of the random-field Ising model, that a maximum of the distribution function at zero field does not necessarily imply a second-order transition at low temperature, as was previously suggested. The order of the low-temperature transition is discussed in terms of the maxima of the distribution function.

Keywords

PHASE TRANSITION
RANDOM FIELD
DISTRIBUTION FUNCTION
SECOND ORDER
MEAN FIELD THEORY

This publication has 2 references indexed in Scilit:

Tricritical points in systems with random fields
Physical Review B, 1978
Random-field instability of the ferromagnetic state
Physical Review B, 1977