Ferromagnetic phase transition in Barabási–Albert networks

Agata Aleksiejuk, Janusz A. Hołyst and Dietrich Stauffer

Physica A: Statistical Mechanics and its Applications, 2002, vol. 310, issue 1, 260-266

Abstract: 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.

Keywords: Monte Carlo simulation; Connectivity; Curie temperature; Nucleation; Mean field approximation; Sociophysics (search for similar items in EconPapers)
Date: 2002
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Citations: View citations in EconPapers (6)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:310:y:2002:i:1:p:260-266

DOI: 10.1016/S0378-4371(02)00740-9

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