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Phase transition in a square Ising model with exchange and dipole interactions (Articolo in rivista)

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Phase transition in a square Ising model with exchange and dipole interactions (Articolo in rivista) (literal)

Anno

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Alternative label

Rastelli E.; Regina S.; Tassi A. (2006)
Phase transition in a square Ising model with exchange and dipole interactions
in Physical review. B, Condensed matter and materials physics; American Physical Society (APS), College Pk (Stati Uniti d'America)
(literal)

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Dipartimento di Fisica, Università di Parma, Parco Area delle Scienze 7/A, 43100 Parma, Italy (literal)

Titolo

Phase transition in a square Ising model with exchange and dipole interactions (literal)

Abstract

Competition between dipole and nearest neighbor exchange interaction in the square Ising model is responsible for the occurrence of antiferromagnetic and striped configurations the width of which, h, increases at increasing J/g, where J and g are the strength of the exchange and the dipole interaction, respectively. Extensive Monte Carlo simulations and finite-size scaling analysis are performed to investigate the nature of the order-disorder phase transition for selected values of J/g supporting the antiferromagnetic configuration and the striped configurations with h=1, 2, 3, 4. Both continuous and first order phase transitions are recognized. (literal)

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