Physics – Condensed Matter – Materials Science
Scientific paper
1998-06-04
`High-Density Magnetic Recording and Integrated Magneto-Optics: Materials and Devices', Materials Research Society Symposium P
Physics
Condensed Matter
Materials Science
6 pages, 4 figures, to be published in the Materials Research Society, Symposium L proceedings. Spring 1998
Scientific paper
The behavior of the compensation temperature of a mixed Ising ferrimagnetic system on a square lattice in which the two interpenetrating square sublattices have spins $\sigma$ ($\pm 1/2$) and spins $S$ ($\pm 1,0$) has been studied with Monte Carlo methods. Our model includes nearest and next-nearest neighbor interactions, a crystal field and an external magnetic field. This model is relevant for understanding bimetallic molecular ferrimagnetic materials. We found that there is a narrow range of parameters of the Hamiltonian for which the model has compensation temperatures and that the compensation point exists only for small values of the external field.
Buendia Gloria M.
Machado Erik
Novotny Mark A.
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