Annealed Alloy of Ising Magnets Within Two-Site Cluster Approximation

• Authors: R. Levitskii , S. Sorokov , R. Sokolovskii
• Languages of publication: EN

Abstracts

EN

Ising mixture with equilibrium disorder is considered. The nearest neighbour spin coupling and direct interatomic interaction are taken into account within two-site cluster approximation. Thermodynamic potential and q-dependent pair correlation function are obtained. Interplay between interspin and interatomic interactions, their influence on magnetic phase transition and alloy segregation are studied. Cluster fluctuations cause significant changes with respect to mean field theory: phase diagram complicates and magnetic properties deviate from those of quenched system.

Keywords

EN

64.60.Cn

Discipline

• 64.60.Cn: Order-disorder transformations(see also 81.30.Hd Constant-composition solid-solid phase transformations: polymorphic, massive, and order-disorder in materials science; for effects of disorder on superconducting transition temperature, see 74.62.En)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1997
• Volume: 92
• Issue: 2
• Pages: 383-386

Dates

published

1997-08

Contributors

author

R. Levitskii

• Institute for Condensed Matter Physics of the National Academy of Sciences, 1 Svientsitski str., Lviv 290011, Ukraine

author

S. Sorokov

• Institute for Condensed Matter Physics of the National Academy of Sciences, 1 Svientsitski str., Lviv 290011, Ukraine

author

R. Sokolovskii

• Institute for Condensed Matter Physics of the National Academy of Sciences, 1 Svientsitski str., Lviv 290011, Ukraine

Identifiers

DOI

10.12693/APhysPolA.92.383