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Bibliographic record number: 49518

Journal

Authors: Lazić, Predrag; Sunko, Denis K.
Title: Vitrification in a 2D Ising model with mobile bonds
( Vitrification in a 2D Ising model with mobile bonds )
Source: European Physical Jurnal B (1434-6028) 21 (2001), 4; 595-604
Paper type: article
Keywords: vitrification; spin glass; Ising model
( vitrification; spin glass; Ising model )
Abstract:
A bond-disordered two-dimensional Ising model is used to simulate Kauzmann's mechanism of vitrification in liquids, by a Monte Carlo heat-bath simulation. The rearrangement of configurations is achieved by allowing impurity bonds to hop to nearest neighbors at the same rate as the spins flip. For slow cooling, the theoretical minimum energy configuration is approached, characterized by an amorphous distribution of locally optimally arranged impurity bonds. Rapid cooling to low temperatures regularly finds bond configurations of higher energy, which are both a priori rare and severely restrictive to spin movement, providing a simple realization of kinetic vitrification. A supercooled liquid regime is also found, and characterized by a change in sign of the field derivative of the spin-glass susceptibility at a finite temperature.
Project / theme: 119204
Original language: eng
Citation databases: Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Category: Znanstveni
Research fields:
Physics
Full paper text: 49518.isinglas_arXiv.ps
URL cjelovitog rada:
Google Scholar: Vitrification in a 2D Ising model with mobile bonds



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