Ferromagnetic phase transition in Barabasi-Albert networks

被引：196
作者：
Aleksiejuk, A
Holyst, JA
Stauffer, D
机构：
[1] Warsaw Univ Technol, Fac Phys, PL-00662 Warsaw, Poland
[2] Univ Cologne, Inst Theoret Phys, D-50923 Cologne, Germany
来源：
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2002年 / 310卷 / 1-2期
关键词：
Monte Carlo simulation; connectivity; Curie temperature; nucleation; mean field approximation; sociophysics;
D O I：
10.1016/S0378-4371(02)00740-9
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Ising spins put onto a Barabasi-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. (C) 2002 Elsevier Science B.V. All rights reserved.
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收藏
页码：260 / 266
页数：7
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