Ferromagnetic state in the one-dimensional Kondo lattice model

Abstract

In our recent study, Phys. Rev. Lett. 108 086402 (2012), we have revealed the intriguing properties of the ferromagnetic state in the Kondo lattice model with antiferromagnetic coupling in infinite dimensions: within the ferromagnetic metallic phase, the minority conduction electrons form a gap at the Fermi energy and do not participate in transport irrespective of interaction strength and filling. This half-metallic state is referred to as a spin-selective Kondo insulator. We here show that the spin-selective Kondo insulator can also be realized in the one-dimensional Kondo lattice model by studying static and dynamical quantities with the density matrix renormalization group. The emergence of the spin selective Kondo insulator both in one and infinite dimensions certainly demonstrates that this mechanism is quite general and ubiquitous for the ferromagnetic state in the Kondo lattice model irrespective of the dimensionality of the system.

arXiv comment7 pages, revised version

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• Strong-coupling limit of depleted Kondo- and Anderson-lattice models
• Topological phase in a two-dimensional metallic heavy-fermion system
• A unified theory of ferromagnetic quantum phase transitions in heavy fermion metals
• Competition of striped magnetic order and partial Kondo screened state in the Kondo lattice model
• Physics of Arbitrary Doped Kondo Lattices: from a Commensurate Insulator to a Heavy Luttinger Liquid and a Protected Helical Metal
• Ferromagnetism in the SU(N) Kondo lattice model -- SU(N) double exchange and supersymmetry
• Low-temperature magnetic properties of the Kondo lattice model in one dimension
• Symmetry-protected topological phase transition in one-dimensional Kondo lattice and its realization with ultracold atoms
• Matrix Product Study of Spin Fractionalization in the 1D Kondo Insulator
• Charge Density Wave in a Doped Kondo Chain
• Coupled dimer and bond-order-wave order in the quarter-filled one-dimensional Kondo lattice model
• An emerging global picture of heavy fermion physics
• Topological properties of magnetically ordered heavy-fermion systems in the presence of mirror symmetry
• Ground-state phase diagram of the $S=1$ one-dimensional Kondo lattice model with a uniaxial anisotropy under transverse fields
• Electric and Magnetic Properties of Higher-Spin Kondo-Heisenberg Models at Strong Coupling
• Transport in Magnetically Doped One-Dimensional Wires: Can the Helical Protection Emerge without the Global Helicity?
• Superconducting Correlations in the One-Dimensional Kondo Lattice Models under Magnetic Fields
• Spin fractionalization in a Kondo-lattice superconductor heterostructure
• Ferromagnetism in the one-dimensional Kondo lattice: mean-field approach via Majorana fermion canonical transformation
• Nonlinear response induced by Ferromagnetism in a Noncentrosymmetric Kondo Lattice system