The Kondo Lattice Model in Infinite Dimensions II. Static Susceptibilities and Phase Diagram

Abstract

Magnetic and charge susceptibilities in the Kondo lattice are derived by the continuous-time quantum Monte Carlo (CT-QMC) method combined with the dynamical mean-field theory. For a weak exchange coupling J and near half filling of the conduction band, antiferromagnetic transition occurs as signalled by divergence of the staggered magnetic susceptibility with lowering temperature. With increasing J, the Kondo effect suppresses the divergence, and the critical value of J agrees well with Doniach's estimate which considers the RKKY interaction as competing with the Kondo effect. For low density of conduction electrons, a ferromagnetic ordering is observed where Doniach's estimate does not work. Around quarter filling, a charge-density-wave (CDW) transition is found. The CDW is interpreted from the strong-coupling limit in terms of effective repulsion between Kondo singlets.

10 pages, 16 figures

References in corpus (6)

• Dynamical vertex approximation - a step beyond dynamical mean field theory
• Influence of Spatial Correlations in Strongly Correlated Electron Systems: Extension to Dynamical Mean Field Approximation
• Continuous-Time Quantum Monte Carlo Method for the Coqblin-Schrieffer Model
• Evolution of a Large Fermi Surface in the Kondo Lattice
• Magnetic phases in the correlated Kondo-lattice model
• The Kondo Lattice Model in Infinite Dimensions I. Formalism

Cited by in corpus (13)

• Continuous-time Monte Carlo methods for quantum impurity models
• Competing d-Wave and p-Wave Spin-Singlet Superconductivities in the Two-Dimensional Kondo Lattice
• Charge order in Kondo lattice systems
• Laser pulse driven control of charge and spin order in the two-dimensional Kondo lattice
• Topological semimetal-to-insulator phase transition between noncollinear and noncoplanar multiple-Q states on a square-to-triangular lattice
• Charge density waves in multiple-$Q$ spin states
• Strong-coupling limit of depleted Kondo- and Anderson-lattice models
• Electronic Order with Staggered Kondo and Crystalline Electric Field Singlets
• Microscopic Mechanism for Staggered Scalar Order in PrFe4P12
• Temperature-Dependent Cycloidal Magnetic Structure in GdRu${}_2$Al${}_{10}$ Studied by Resonant X-ray Diffraction
• Schwinger boson approach for the dynamical mean-field theory of the Kondo lattice
• Anisotropic Magnetic Response in Kondo Lattice with Antiferromagnetic Order
• Many-body Chern insulator in the Kondo lattice model on a triangular lattice