Study of the spin- Hubbard-Kondo lattice model by means of the Composite Operator Method
arXiv:0707.3822 · doi:10.1016/j.physb.2006.01.227
Abstract
We study the spin- Hubbard-Kondo lattice model by means of the Composite Operator Method, after applying a Holstein-Primakov transformation. The spin and particle dynamics in the ferromagnetic state are calculated by taking into account strong on-site correlations between electrons and antiferromagnetic exchange among spins, together with usual Hund coupling between electrons and spins.