Magnetic quantum phase transition in an anisotropic Kondo lattice

Abstract

The quantum phase transition between paramagnetic and antiferromagnetic phases of the Kondo lattice model with Ising anisotropy in the intersite exchange is studied within the framework of extended dynamical mean-field theory. Nonperturbative numerical solutions at zero temperature point to a continuous transition for both two- and three-dimensional magnetism. In the former case, the transition is associated with critical local physics, characterized by a vanishing Kondo scale and by an anomalous exponent in the dynamics close in value to that measured in heavy-fermion CeCu_{5.9}Au_{0.1}.

arXiv comment4 pages, 3 figures. Version published in Phys. Rev. Lett

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• Heavy-electron quantum criticality and single-particle spectroscopy
• Quantum Criticality and Global Phase Diagram of Magnetic Heavy Fermions
• Orbital-selective Mott transitions: Heavy fermions and beyond
• Quantum phase transitions in heavy fermion metals and Kondo insulators
• Kondo Destruction and Quantum Criticality in Kondo Lattice Systems
• Cellular Dynamical Mean Field Theory of the Periodic Anderson Model
• Zero-Temperature Magnetic Transition in an Easy-Axis Kondo Lattice Model
• Quantum phase transition in a two-dimensional Kondo-Heisenberg model: a Schwinger-boson large-N approach
• Kondo Destruction in Heavy Fermion Quantum Criticality and the Photoemission Spectrum of YbRh${}_2$Si${}_2$
• Mottness scenario for non-Fermi liquid behavior in the periodic Anderson model within Dynamical Mean Field Theory
• Quantum critical metals and loss of quasiparticles
• Quantum phase transitions in a charge-coupled Bose-Fermi Anderson model
• Antiferromagnetic phase of the Kondo-insulator
• Non-Fermi liquid behavior and quantum criticality in cubic heavy fermion systems with non-Kramers multipolar local moments
• Bose-Fermi Anderson Model with SU(2) Symmetry: Continuous-Time Quantum Monte Carlo Study
• Cluster Extended Dynamical Mean Field Approach and Unconventional Superconductivity
• Impurity resonant state in d-wave superconductors: in favor of a Kondo-like response
• Local Quantum Criticality of a One-Dimensional Kondo Insulator Model
• Quasiparticle Band Structure and Spin Excitation Spectrum of the Kondo Lattice
• Critical Kondo destruction and the violation of the quantum-to-classical mapping of quantum criticality
• Magnetic Field Dependence of the Spin Fluctuations in CeCu${}_{5.8}$Ag${}_{0.2}$