Phase transitions in Ising model on a Euclidean network

Details Phase transitions in Ising model on a Euclidean network Phase transitions in Ising model on a Euclidean network

2006-06-06

arxiv.org/abs/cond-mat/0606138v2

Phys. Rev E 74, 036109 (2006)

Physics

Condensed Matter

Statistical Mechanics

7 pages, revtex4, 7 figures; to appear in Physical Review E, minor changes made

Scientific paper

10.1103/PhysRevE.74.036109

A one dimensional network on which there are long range bonds at lattice distances $l>1$ with the probability $P(l) \propto l^{-\delta}$ has been taken under consideration. We investigate the critical behavior of the Ising model on such a network where spins interact with these extra neighbours apart from their nearest neighbours for $0 \leq \delta < 2$. It is observed that there is a finite temperature phase transition in the entire range. For $0 \leq \delta < 1$, finite size scaling behaviour of various quantities are consistent with mean field exponents while for $1\leq \delta\leq 2$, the exponents depend on $\delta$. The results are discussed in the context of earlier observations on the topology of the underlying network.

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