We study the spin- frac(3, 2) 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 frac(3, 2) spins, together with usual Hund coupling between electrons and spins. © 2006 Elsevier B.V. All rights reserved.
Study of the spin- frac(3, 2) Hubbard-Kondo lattice model by means of the Composite Operator Method
AVELLA, Adolfo;MANCINI, Ferdinando
2006
Abstract
We study the spin- frac(3, 2) 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 frac(3, 2) spins, together with usual Hund coupling between electrons and spins. © 2006 Elsevier B.V. All rights reserved.File in questo prodotto:
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