L. Veiller et al., PHASE-TRANSITIONS IN A FERRIMAGNETIC HEISENBERG MULTILAYER - A MONTE-CARLO STUDY, Journal of magnetism and magnetic materials, 184(1), 1998, pp. 55-61
Using a Monte Carlo method, the magnetic properties of a Heisenberg mu
ltilayer system consisting of four alternating ferromagnetic layers (A
and B) with different spills and interaction constants are examined.
The effects of sampling size, antiferromagnetic interlayer coupling (J
(AB)) and disordered interfaces on the specific heat and magnetisation
thermal variation are investigated. For multilayers with steep interf
aces, it is shown that the thermal variation of the specific heat exhi
bits two peaks, but only a single-phase transition occurs. The transit
ion temperature is independent on J,, in the investigated range, On th
e other hand, this temperature depends on the kind of the interfaces.
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