The order parameter and susceptibility of the 3D Ising-like system in an external field near the phase transition point

The present work is devoted to the investigation of the 3D Ising-like model in the presence of an external field in the vicinity of critical point. The method of collective variables is used. General expressions for the order parameter and susceptibility are calculated as functions of temperature an...

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Main Authors: M.P. Kozlovskii, R.V. Romanik
Format: Article
Language:English
Published: Institute for Condensed Matter Physics 2010-01-01
Series:Condensed Matter Physics
Subjects:
Online Access:http://dx.doi.org/10.5488/CMP.13.43004
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spelling doaj-7ce633888393499bb51e8ae9258e53652020-11-24T23:22:34ZengInstitute for Condensed Matter PhysicsCondensed Matter Physics1607-324X2010-01-0113443004The order parameter and susceptibility of the 3D Ising-like system in an external field near the phase transition point M.P. KozlovskiiR.V. RomanikThe present work is devoted to the investigation of the 3D Ising-like model in the presence of an external field in the vicinity of critical point. The method of collective variables is used. General expressions for the order parameter and susceptibility are calculated as functions of temperature and the external field as well as scaling functions of that are explicitly obtained. The results are compared with the ones obtained within the framework of parametric representation of the equation of state and Monte Carlo simulations. New expression for the exit point from critical regime of the order parameter fluctuations is proposed and used for the calculation. http://dx.doi.org/10.5488/CMP.13.43004Ising modelorder parametercollective variablescritical point
collection DOAJ
language English
format Article
sources DOAJ
author M.P. Kozlovskii
R.V. Romanik
spellingShingle M.P. Kozlovskii
R.V. Romanik
The order parameter and susceptibility of the 3D Ising-like system in an external field near the phase transition point
Condensed Matter Physics
Ising model
order parameter
collective variables
critical point
author_facet M.P. Kozlovskii
R.V. Romanik
author_sort M.P. Kozlovskii
title The order parameter and susceptibility of the 3D Ising-like system in an external field near the phase transition point
title_short The order parameter and susceptibility of the 3D Ising-like system in an external field near the phase transition point
title_full The order parameter and susceptibility of the 3D Ising-like system in an external field near the phase transition point
title_fullStr The order parameter and susceptibility of the 3D Ising-like system in an external field near the phase transition point
title_full_unstemmed The order parameter and susceptibility of the 3D Ising-like system in an external field near the phase transition point
title_sort order parameter and susceptibility of the 3d ising-like system in an external field near the phase transition point
publisher Institute for Condensed Matter Physics
series Condensed Matter Physics
issn 1607-324X
publishDate 2010-01-01
description The present work is devoted to the investigation of the 3D Ising-like model in the presence of an external field in the vicinity of critical point. The method of collective variables is used. General expressions for the order parameter and susceptibility are calculated as functions of temperature and the external field as well as scaling functions of that are explicitly obtained. The results are compared with the ones obtained within the framework of parametric representation of the equation of state and Monte Carlo simulations. New expression for the exit point from critical regime of the order parameter fluctuations is proposed and used for the calculation.
topic Ising model
order parameter
collective variables
critical point
url http://dx.doi.org/10.5488/CMP.13.43004
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