Effect of on-site Coulomb repulsion on phase transitions in exactly solved spin-electron model

Details Effect of on-site Coulomb repulsion on phase transitions in exactly solved spin-electron model Effect of on-site Coulomb repulsion on phase transitions in exactly solved spin-electron model

2010-09-09

arxiv.org/abs/1009.1712v2

Acta Phys. Pol. A 118 (2010) 942-943

Physics

Condensed Matter

Statistical Mechanics

2 pages, 3 figures, presented at 14th Czech and Slovak Conference on Magnetism 6.-9. July 2010, Kosice, Slovakia

Scientific paper

A hybrid lattice-statistical model on doubly decorated planar lattices, which have localized Ising spins at their nodal lattice sites and two itinerant electrons at each pair of decorating sites, is exactly solved by the use of a generalized decoration-iteration transformation. Our main attention is focused on an in uence of the on-site Coulomb repulsion on ground-state properties and critical behavior of the investigated system.

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