Pantić, Milan; Škrinjar, Mario; Kapor, Darko - In: Physica A: Statistical Mechanics and its Applications 387 (2008) 23, pp. 5786-5794
The Hamiltonian of the magnetic superlattice with three-layer unit cell was treated within the Boson formalism. The Boson Green’s functions (BGFs) were derived and it was shown that the system for BGFs splits into two sets which lead to the energies with opposite signs, although the energies...