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Bond operator mean field theory of the half filled Kondo lattice model by Jurecka, Christoph; Brenig, Wolfram is a scholarly article available to read on EtoBox.

What is Bond operator mean field theory of the half filled Kondo lattice model about?

We present a bond-operator mean field theory for the Kondo lattice model at half filling in two (2D) and three (3D) dimensions. A continuous quantum phase transition from an antiferromagnetic to a spin-gapped singlet ground state is found at J/t=1.505 (1.833) in 2D (3D). Additionally we evaluate the quasiparticle dispersions as well as the staggered magnetic moment and provide a comparison with complementary numerical approaches.

Author

Jurecka, Christoph; Brenig, Wolfram

Published

2001

Language

EN