On bimodal size distribution of spin clusters in the onedimensional Ising model

The size distribution of geometrical spin clusters is exactly found for the onedimensional Ising model of finite extent. For the values of lattice constant β above some “critical value” βc the found size distribution demonstrates the non-monotonic behaviour with the peak corresponding to the size of...

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Main Authors: Ivanytskyi A., Chelnokov V.
Format: Article
Language:English
Published: EDP Sciences 2018-01-01
Series:EPJ Web of Conferences
Online Access:https://doi.org/10.1051/epjconf/201818203004
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author Ivanytskyi A.
Chelnokov V.
author_facet Ivanytskyi A.
Chelnokov V.
author_sort Ivanytskyi A.
collection DOAJ
description The size distribution of geometrical spin clusters is exactly found for the onedimensional Ising model of finite extent. For the values of lattice constant β above some “critical value” βc the found size distribution demonstrates the non-monotonic behaviour with the peak corresponding to the size of the largest available cluster. In other words, for high values of the lattice constant there are two ways to fill the lattice: either to form a single largest cluster or to create many clusters of small sizes. This feature closely resembles the well-know bimodal size distribution of clusters which is usually interpreted as a robust signal of the first order liquid-gas phase transition in finite systems. It is remarkable that the bimodal size distribution of spin clusters appears in the one-dimensional Ising model of finite size, i.e. in the model which in thermodynamic limit has no phase transition at all.
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spelling doaj.art-e1d38468742a42e9aa812a9763fd643c2022-12-21T22:07:25ZengEDP SciencesEPJ Web of Conferences2100-014X2018-01-011820300410.1051/epjconf/201818203004epjconf_icnfp2018_03004On bimodal size distribution of spin clusters in the onedimensional Ising modelIvanytskyi A.Chelnokov V.The size distribution of geometrical spin clusters is exactly found for the onedimensional Ising model of finite extent. For the values of lattice constant β above some “critical value” βc the found size distribution demonstrates the non-monotonic behaviour with the peak corresponding to the size of the largest available cluster. In other words, for high values of the lattice constant there are two ways to fill the lattice: either to form a single largest cluster or to create many clusters of small sizes. This feature closely resembles the well-know bimodal size distribution of clusters which is usually interpreted as a robust signal of the first order liquid-gas phase transition in finite systems. It is remarkable that the bimodal size distribution of spin clusters appears in the one-dimensional Ising model of finite size, i.e. in the model which in thermodynamic limit has no phase transition at all.https://doi.org/10.1051/epjconf/201818203004
spellingShingle Ivanytskyi A.
Chelnokov V.
On bimodal size distribution of spin clusters in the onedimensional Ising model
EPJ Web of Conferences
title On bimodal size distribution of spin clusters in the onedimensional Ising model
title_full On bimodal size distribution of spin clusters in the onedimensional Ising model
title_fullStr On bimodal size distribution of spin clusters in the onedimensional Ising model
title_full_unstemmed On bimodal size distribution of spin clusters in the onedimensional Ising model
title_short On bimodal size distribution of spin clusters in the onedimensional Ising model
title_sort on bimodal size distribution of spin clusters in the onedimensional ising model
url https://doi.org/10.1051/epjconf/201818203004
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