Two-channel Kondo Lattice Model on a ladder studied by the Density Matrix Renormalization Group Method

Abstract

Using the density matrix renormalization group (DMRG) method we study a two-channel Kondo lattice model on a half filled ladder. Our model involves an on-site s-wave and a nearest neighbor d-wave coupling between the local moments and the conduction electrons on the ladder. By changing the relative strength of the two Kondo interactions we examine the evolution of the system from a conventional Kondo insulator with a singlet at each site to a new kind of semimetallic state formed by overlapping of Zhang-Rice-like singlets. The DMRG is used to study how the spin and charge correlation functions evolve between these two regimes.

References in corpus (1)

• Topological approach to Luttinger's theorem and the Fermi surface of a Kondo lattice

Cited by in corpus (7)

• The density-matrix renormalization group
• New Trends in Density Matrix Renormalization
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• Cubic hastatic order in the two-channel Kondo-Heisenberg model
• Phase Diagram of the Two-Leg Kondo Ladder
• 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