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International Letters of Chemistry, Physics and Astronomy
ILCPA Volume 56
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Reentrance Phenomenon of a Mixed Spin Ising Model
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Reentrance Phenomenon of a Mixed Spin Ising Model

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Abstract:

A reentrant magnetic phase transition in molecular based magnet AFeIIFeIII(C2O4)3[A=N(n-CnH2n+1)4, n=3-5] is investigated by the use of Mean-Field Theory (MFT) for a mixed spin-2 and spin-5/2 Ising system on a simple cubic lattice. It is found that a double-entrant ferrimagnetic behaviour in the mixed-spin system depends on the negative values of the anisotropies in the order-disorder system for the two sublattices of the mixture. It is shown using numerical calculations that this phenomenon is strongly affected by the magnetic anisotropy and lattice disorder.

Info:

Periodical:
International Letters of Chemistry, Physics and Astronomy (Volume 56)
Pages:
31-36
DOI:
https://doi.org/10.18052/www.scipress.com/ILCPA.56.31
Citation:
H. Mohamad, "Reentrance Phenomenon of a Mixed Spin Ising Model", International Letters of Chemistry, Physics and Astronomy, Vol. 56, pp. 31-36, 2015
Online since:
July 2015
Authors:
Hadey Mohamad
Keywords:
Mixed-Spin Ising Model, Reentrant Behaviour, Single-Ion Anisotropy
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Distribution:
Open Access

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