DOI: https://doi.org/10.30970/jps.01.70
ISING MODEL WITH QUENCHED DISORDER IN TWO-SITE CLUSTER APPROXIMATION
|
Journal of Physical Studies 1(1), 70–89 (1996)
DOI: https://doi.org/10.30970/jps.01.70 ISING MODEL WITH QUENCHED DISORDER IN TWO-SITE CLUSTER APPROXIMATION |
|
R. R. Levitskii, S. I. Sorokov, R. O. Sokolovskii
Institute for Condensed Matter Physics
1 Svientsitskii Str., Lviv
UA-290011, Ukraine
Thermodynamics and Glauberian kinetics of the quenched alloy of Ising magnets are considered. Within the two–site cluster approximation $\Vec{q}$-dependent correlation functions and dynamic structure factor of the model are obtained and investigated. The approach yields accurate results for the 1D lattice. Peculiarities and inconsistencies of the approximation in the higher dimensions are considered in detail.