Smearing of the Phase Transition in Ising Systems with Planar Defects
Abstract
We show that phase transitions in Ising systems with planar defects, i.e., disorder perfectly correlated in two dimensions are destroyed by smearing. This is caused by effects similar to but stronger than the Griffiths phenomena: exponentially rare spatial regions can develop true static long-range order even when the bulk system is still in its disordered phase. Close to the smeared transition, the order parameter is very inhomogeneous in space, with the thermodynamic (average) order parameter depending exponentially on temperature. We determine the behaviour using extremal statistics, and we illustrate the results by computer simulations.
Recommended Citation
T. Vojta, "Smearing of the Phase Transition in Ising Systems with Planar Defects," Journal of Physics A: Mathematical and General, vol. 36, no. 43, pp. 10921 - 10935, Institute of Physics - IOP Publishing, Oct 2003.
The definitive version is available at https://doi.org/10.1088/0305-4470/36/43/017
Department(s)
Physics
International Standard Serial Number (ISSN)
0305-4470
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2003 Institute of Physics - IOP Publishing, All rights reserved.
Publication Date
01 Oct 2003
