Thermodynamic properties of a classical d-dimensional spin-S Heisenberg ferromagnet with long-range interactions via the spectral density method

A Cavallo, F Cosenza and L De Cesare

Physica A: Statistical Mechanics and its Applications, 2004, vol. 332, issue C, 301-317

Abstract: The thermodynamic properties of a classical d-dimensional spin-S Heisenberg ferromagnet, with long-range interactions decaying as r−p and in the presence of an external magnetic field, is investigated by means of the spectral density method in the framework of classical statistical mechanics. We find that long-range order exists at finite temperature for dd with d>2, consistently with known theorems. Besides, the related critical temperature is determined and a study of the critical properties is performed.

Keywords: Classical Heisenberg model; Long-range interactions (search for similar items in EconPapers)
Date: 2004
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:332:y:2004:i:c:p:301-317

DOI: 10.1016/j.physa.2003.09.060

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