Ferromagnetic phase transition in Barabási–Albert networks

Ising spins put onto a Barabási–Albert scale-free network show an effective phase transition from ferromagnetism to paramagnetism upon heating, with an effective critical temperature increasing as the logarithm of the system size. Starting with all spins up and upon equilibration pinning the few most-connected spins down nucleates the phase with most of the spins down.

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Year of publication:	2002
Authors:	Aleksiejuk, Agata ; Hołyst, Janusz A. ; Stauffer, Dietrich
Published in:	Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 310.2002, 1, p. 260-266
Publisher:	Elsevier
Subject:	Monte Carlo simulation \| Connectivity \| Curie temperature \| Nucleation \| Mean field approximation \| Sociophysics

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Type of publication:	Article
Source:	RePEc - Research Papers in Economics

Persistent link: https://www.econbiz.de/10011060678