Phase diagrams of the site-diluted spin-1/2 Ising superlattice

Using the effective-field theory with a probability distribution technique that accounts for the single-site spin correlations, the critical behavior of a diluted spin-1/2 Ising superlattice consisting of two different ferrom agnet materials is examined. The critical temperature of the system is:stud ied as a function of the thickness of the constituents in a unit cell, the concentration of magnetic atoms, and the exchange interactions in each mate rial. It is shown that the properties of the diluted system are different f rom-those of the corresponding pure system. [S0163-1829(99)02529-1].