Antiferromagnetic phase of the Kondo-insulator

Abstract

We discuss the quasiparticle band structure of the antiferromagnetic phase of the planar Kondo lattice model with a half-filled conduction band, the so-called Kondo insulator. The band structure is obtained by bond fermion technique and good agreement is obtained with the single particle spectral function obtained by Dynamical Cluster Approximation. In particular, various changes of the band structure with J/t observed in the numerical spectra are reproduced qualitatively by the calculation. In the absence of Fermi surface nesting we find a semimetallic phase for sufficiently small exchange constant and possible experimental consequences are discussed

arXiv comment7 pages, 7 figures

References in corpus (41)

• Fermi-liquid instabilities at magnetic quantum phase transitions
• Locally critical quantum phase transitions in strongly correlated metals
• Heavy Fermions and Quantum Phase Transitions
• Weak magnetism and non-Fermi liquids near heavy-fermion critical points
• Spin-ladders with spin gaps: A description of a class of cuprates
• Coherence scale of the Kondo lattice
• Local fluctuations in quantum critical metals
• Quantum Monte Carlo simulations of the half-filled two-dimensional Kondo lattice model
• Critical local moment fluctuations in the Bose-Fermi Kondo model
• Novel approach to description of spin liquid phases in low-dimensional quantum antiferromagnets
• Fermi Surface Reconstruction without Breakdown of Kondo Screening at Quantum Critical Point
• Kondo Destruction and Quantum Criticality in Kondo Lattice Systems
• T=0 heavy fermion quantum critical point as an orbital selective Mott transition
• Coexisting Kondo singlet state with antiferromagnetic long-range order: A possible ground state for Kondo insulators
• Continuous quantum phase transition in a Kondo lattice model
• Fermi surface topology of the two-dimensional Kondo lattice model: a dynamical cluster approximation approach
• From itinerant to local-moment antiferromagnetism in Kondo lattices: Adiabatic continuity vs. quantum phase transitions
• Strong coupling theory of heavy fermion criticality
• Evolution of the Fermi Surface across a Magnetic Order-Disorder Transition in the Two-Dimensional Kondo Lattice Model: A Dynamical Cluster Approach
• Double-layer Heisenberg antiferromagnet at finite temperature: Brueckner Theory and Quantum Monte Carlo simulations
• Extended Dynamical Mean Field Theory Study of the Periodic Anderson Model
• Ground-state properties of the One-dimensional Kondo Lattice at partial Band-filling
• Variational Monte Carlo approach to the two-dimensional Kondo lattice model
• Many-body band structure and Fermi surface of the Kondo lattice
• Fermi surface and antiferromagnetism in the Kondo lattice: an asymptotically exact solution in d>1 Dimensions
• Temperature-induced gap formation in dynamic correlation functions of the one-dimensional Kondo insulator --- Finite-temperature density-matrix renormalization-group study ---
• Bond operator mean field theory of the half filled Kondo lattice model
• Large and Small Fermi-Surface Spin Density Waves in the Kondo Lattice Model
• Zero-Temperature Magnetic Transition in an Easy-Axis Kondo Lattice Model
• Fermi Surface of The One-dimensional Kondo Lattice Model
• Phase Transitions in the Symmetric Kondo Lattice Model in Two and Three Dimensions
• Magnetic quantum phase transition in an anisotropic Kondo lattice
• Single particle excitations of the Kondo lattice
• Quasiparticles in the Kondo lattice model at partial fillings of the conduction band
• Critical phenomena near the antiferromagnetic quantum critical point of Heavy-Fermions
• Lifshitz transitions in a heavy-Fermion liquid driven by short-range antiferromagnetic correlations in the two-dimensional Kondo lattice model
• Lifshitz Transitions in Magnetic Phases of the Periodic Anderson Model
• Competition of striped magnetic order and partial Kondo screened state in the Kondo lattice model
• Faithful fermionic representations of the Kondo lattice model
• Zero Temperature Series Expansions for the Kondo Lattice Model
• Antiferromagnetic Phases of the Kondo Lattice

Cited by in corpus (7)

• Zooming in on heavy fermions in Kondo lattice models
• Phase diagram and dynamics of the SU($\mathbf{N}$) symmetric Kondo lattice model
• Breakdown of heavy quasiparticles in a honeycomb Kondo lattice: A quantum Monte Carlo study
• Altermagnetism in Heavy Fermion Systems: Mean-Field study on Kondo Lattice
• Quasiparticle Band Structure and Spin Excitation Spectrum of the Kondo Lattice
• Bond particle theory for the pseudogap phase of underdoped cuprates
• SU($\mathbf{N}$) Kondo-Heisenberg chain: Phase diagram, Ising criticality, and the coexistence of heavy quasiparticles and valence bond solid order