36 research outputs found
The influence of structural short-range order on the phase diagrams of diluted FCC magnet with arbitrary spin and modified RKKY interaction
A diluted FCC magnet with modified long-range RKKY interaction and arbitrary
Ising spin S is considered within two-sublattice model. In the molecular field
approximation the Gibbs free-energy is derived, from which all magnetic
thermodynamic properties can be self-consistently obtained. In particular, the
phase diagrams are studied for different magnetic ion and free-charge
concentration, the atomic short-range-order (Warren-Cowley) parameter being
taken into account.Comment: 12 pages, 6 figures, revtex4 fil