Kondo lattice model at half-filling

Abstract

The single- and two-channel Kondo lattice model consisting of localized spins interacting antiferromagnetically with the itinerent electrons, are studied using dynamical mean field theory. As an impurity solver for the effective single impurity Anderson model we used the exact diagonalization (ED) method. Using ED allowed us to perform calculations for low temperatures and couplings of arbitrary large strength. Our results for the single-channel case confirm and extend the recent investigations. In the two-channel case we find a symmetry breaking phase transition with increasing coupling strength.

11 pages, 5 figures

References in corpus (5)

• Hybridization expansion impurity solver: General formulation and application to Kondo lattice and two-orbital models
• Transport Properties of the Kondo Lattice Model in the Limit $S=\infty$ and $D=\infty$
• Two-Channel Kondo Lattice: An Incoherent Metal
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Cited by in corpus (6)

• Superconductivity of Composite Particles in Two-Channel Kondo Lattice
• Diagonal composite order in two-channel Kondo lattice
• Channel-selective non-Fermi liquid behavior in the two-channel Kondo lattice model under a magnetic field
• Phase diagram of Holstein-Kondo lattice model at half-filling
• Algebraic Hastatic Order in One-Dimensional Two-Channel Kondo Lattice
• Antiferromagnetism and Stripe Channel Order in the $\mathrm{SU}(N)$-Symmetric Two-Channel Kondo Lattice Model