Magnetic properties of the site-diluted spin-1 Ising superlattice
Abstract
The critical behavior of a diluted spin-1 Ising superlattice is examined using the effective-field theory with a probability distribution technique that accounts for the self-spin correlation functions. The critical temperature of the system is studied as a function of the exchange interactions in each material, the concentration of magnetic atoms, and the thickness of the constituents in a unit cell. A critical value of the interface exchange interaction above which the interface magnetism appears is found. We calculated also some magnetic properties of a diluted spin-1 Ising superlattice such as the layer longitudinal magnetizations and quadrupolar moments. It is shown that the properties of the diluted system are different from those of the corresponding pure system.
- Publication:
-
Physical Review B
- Pub Date:
- February 2001
- DOI:
- 10.1103/PhysRevB.63.054436
- Bibcode:
- 2001PhRvB..63e4436E
- Keywords:
-
- 75.70.Ak;
- 75.70.Cn;
- Magnetic properties of monolayers and thin films;
- Magnetic properties of interfaces