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Preprints, Working Papers, ... Year : 2004

Correlations in mesoscopic magnetic systems

Abstract

The purpose of this proposal is to study the ferro/para phase transition in a mesoscopic Ising-like lattice and in particular demonstrate the existence of a negative magnetic susceptibility in the fixed magnetization ensemble. To this aim we will use the correlation < S(r) S(r+Dr) > = < M2>/N2 where N is the total number of spins for a single cluster, M the total magnetization of the cluster, and the equality holds if we choose r0

Dates and versions

in2p3-00085329 , version 1 (12-07-2006)

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Cite

F. Gulminelli, P. Chomaz. Correlations in mesoscopic magnetic systems. 2004. ⟨in2p3-00085329⟩
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