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TT: Tiefe Temperaturen

TT 25: Correlated Electrons - Poster Session

TT 25.46: Poster

Wednesday, March 29, 2006, 14:30–18:30, P1

DCA Calculations of the Kondo Lattice Model — •Lee Martin and Fakher Assaad — Universität Würzburg

We consider the two-dimensional Kondo Lattice model with exchange J and hopping t within the framework of the Dynamical Cluster Approximation. Results at different temperatures and different cluster sizes will first be compared with existing BSS results (1) at half-filling. We then move on to the doped lattice with the ultimate aim of mapping out the magnetic phase diagram as a function of doping and coupling J/t.
(1) S. Capponi, F.F. Assaad, Phys. Rev. B 63, 155114, (2001)