Publication
Title
Refined semi-empirical formula for liquid-vapour critical point exponent delta and its relevance to the random field Ising model
Author
Abstract
Recent work in D. J. Klein and N. H. March, Phys. Lett. A 372, 5052 (2008) has considered, by a semi-empirical approach, the critical exponent delta at the liquid-vapour critical point as a function of dimensionality D. Here we first refine delta(d'), again semi-empirically, but with better results for other critical exponents, especially eta(d'). The resulting form of delta(d') is then utilised to discuss the random field Ising model. Systems with random fields are expected to exhibit drastically modified critical properties. We discuss the relation between a d-dimensional spin system in a random field with a d'-dimensional spin assembly in a zero magnetic field. A further matter focused in here concerns effective reduced dimensionality and hyperscaling relations. We conclude by assessing the way in which the available experimental results relate to the issues raised above.
Language
English
Source (journal)
Physics and chemistry of liquids. - London
Publication
London : 2011
ISSN
0031-9104
Volume/pages
49:5(2011), p. 684-692
ISI
000299701600012
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 18.04.2012
Last edited 18.07.2017
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