MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Extension of Structure Integration to Magnetic System
Kazuhito TakeuchiTakashi IshikawaRyohei TanakaKoretaka Yuge
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2016 Volume 57 Issue 10 Pages 1667-1670

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Abstract

We extend our previously developed method, “structure integration”, to evaluate free energy directly for magnetic large systems on a given lattice. The present method expresses the density of states (DOS) as parameters independent of the system but dependent on the lattice, and replaces the DOS unknown a priori as that known a priori. Through the two-dimensional square lattice Ising model, we find that the present method can evaluate magnetic free energy efficiently and accurately above the critical temperature without iterative methods like the Monte Carlo simulation.

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© 2016 The Japan Institute of Metals and Materials
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