Fermi surface topology of the two-dimensional Kondo lattice model: a dynamical cluster approximation approach

Abstract

We report the results of extensive dynamical cluster approximation calculations, based on a quantum Monte Carlo solver, for the two-dimensional Kondo lattice model. Our particular cluster implementation renders possible the simulation of spontaneous antiferromagnetic symmetry breaking. By explicitly computing the single-particle spectral function both in the paramagnetic and antiferromagnetic phases, we follow the evolution of the Fermi surface across this magnetic transition. The results, computed for clusters up to 16 orbitals, show clear evidence for the existence of three distinct Fermi surface topologies. The transition from the paramagnetic metallic phase to the antiferromagnetic metal is continuous; Kondo screening does not break down and we observe a back-folding of the paramagnetic heavy fermion band. Within the antiferromagnetic phase and when the ordered moment becomes large the Fermi surface evolves to one which is adiabatically connected to a Fermi surface where the local moments are frozen in an antiferromagnetic order.

13 pages, 16 figures

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• Emergent Charge Fluctuations at the Kondo Breakdown of Heavy Fermions
• Large and Small Fermi-Surface Spin Density Waves in the Kondo Lattice Model
• Quantum criticality in the two-dimensional periodic Anderson model
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• Dynamically generated edge states in topological Kondo insulators
• Finite-temperature spectra and quasiparticle interference in Kondo lattices: From light electrons to coherent heavy quasiparticles
• Toward a New Microscopic Framework for Kondo Lattice Materials
• Phase diagram, energy scales and nonlocal correlations in the Anderson lattice model
• Zooming in on heavy fermions in Kondo lattice models
• Ferromagnetism and Fermi-surface transition in the periodic Anderson model: Second-order phase transition without symmetry breaking
• Lifshitz phase transitions in the ferromagnetic regime of the Kondo lattice model
• Theory of Scanning Tunneling Spectroscopy: from Kondo Impurities to Heavy Fermion Materials
• Phase diagram and dynamics of the SU($\mathbf{N}$) symmetric Kondo lattice model
• Lifshitz Transitions in Magnetic Phases of the Periodic Anderson Model
• Lifshitz transitions in a heavy-Fermion liquid driven by short-range antiferromagnetic correlations in the two-dimensional Kondo lattice model
• D-wave superconductivity induced by short-range antiferromagnetic correlations in the two-dimensional Kondo lattice model
• Quasi continuous-time impurity solver for the dynamical mean-field theory with linear scaling in the inverse temperature
• Orbital-selective Mott transition and heavy fermion behavior in a bilayer Hubbard model for 3He
• Competition of striped magnetic order and partial Kondo screened state in the Kondo lattice model
• Faithful fermionic representations of the Kondo lattice model
• Variational cluster approach to superconductivity and magnetism in the Kondo lattice model
• Antiferromagnetic phase of the Kondo-insulator
• Phase evolution of the two-dimensional Kondo lattice model near half-filling
• Pairing symmetry of heavy fermion superconductivity in the two-dimensional Kondo-Heisenberg lattice model
• Antiferromagnetic Phases of the Kondo Lattice
• Composite Orders and Lifshitz Transition of Heavy Electrons
• Phase diagram of the Hubbard-Kondo lattice model from variational cluster approximation
• Doping-induced band shifts and Lifshitz transitions in heavy-fermion metals
• Frustrated quantum magnetism in the Kondo lattice on the zigzag ladder
• Universal scaling in the Knight shift anomaly of doped periodic Anderson model
• Ultrafast Optical Control of Magnetic Order and Fermi Surface Topology at a Quantum Critical Point
• Quasiparticle Band Structure and Spin Excitation Spectrum of the Kondo Lattice
• SU($\mathbf{N}$) Kondo-Heisenberg chain: Phase diagram, Ising criticality, and the coexistence of heavy quasiparticles and valence bond solid order
• Multiple Lifshitz transitions driven by short-range antiferromagnetic correlations in the two-dimensional Kondo lattice model
• Photo-emission signatures of coherence breakdown in Kondo alloys: dynamical mean-field theory approach