Fourth-Order Cumulants to Characterize the Phase Transitions of a Spin-1 Ising Model

Details Fourth-Order Cumulants to Characterize the Phase Transitions of a Spin-1 Ising Model Fourth-Order Cumulants to Characterize the Phase Transitions of a Spin-1 Ising Model

1998-10-30

arxiv.org/abs/cond-mat/9810412v1

Braz. J. Phys. 28, 58 (1998)

Physics

Condensed Matter

Statistical Mechanics

18 pages, Revtex, 8 encapsulated postscript figures

Scientific paper

Fourth-order cumulants of physical quantities have been used to characterize the nature of a phase transition. In this paper we report some Monte Carlo simulations to illustrate the behavior of fourth-order cumulants of magnetization and energy across second and first-order transitions in the phase diagram of a well known spin-1 Ising model. Simple ideas from the theory of thermodynamic fluctuations are used to account for the behavior of these cumulants.

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