Competition of striped magnetic order and partial Kondo screened state in the Kondo lattice model

Abstract

We analyze the magnetically ordered phases in the Kondo lattice model on a square lattice around quarter filling using the dynamical mean field theory. We find that close to quarter filling besides the paramagnetic phase, at least three magnetic phases compete. These phases are a ferromagnetic state, a partial Kondo screened state, which is a combination of charge order and magnetic order, and a striped magnetic phase, which is ferromagnetically ordered in one direction and antiferromagnetically in the other direction. We analyze the spectral properties of these states and show that the PKS state is insulating with a flat band above the Fermi energy, while the other states are metallic. Furthermore, we demonstrate that the energy gain by the Kondo effect is larger in the PKS state, while the striped magnetic state can gain more energy from the RKKY interaction. Thus, while the striped magnetic state is stable at weak coupling, the PKS state becomes stable at intermediate coupling.

arXiv comment7 pages

References in corpus (35)

• The numerical renormalization group method for quantum impurity systems
• Anomalous Normal-State Properties of High-T${}_c$ Superconductors -- Intrinsic Properties of Strongly Correlated Electron Systems?
• Sum-rule Conserving Spectral Functions from the Numerical Renormalization Group
• A Numerical Renormalization Group approach to Green's Functions for Quantum Impurity Models
• Quantum Monte Carlo simulations of the half-filled two-dimensional Kondo lattice model
• Fermi Surface Reconstruction without Breakdown of Kondo Screening at Quantum Critical Point
• Kondo Destruction and Quantum Criticality in Kondo Lattice Systems
• Fermi-surface evolution across the magnetic phase transition in the Kondo lattice model
• Spin-selective Kondo insulator: Cooperation of ferromagnetism and Kondo effect
• From itinerant to local-moment antiferromagnetism in Kondo lattices: Adiabatic continuity vs. quantum phase transitions
• Fermi surface topology of the two-dimensional Kondo lattice model: a dynamical cluster approximation approach
• Evolution of the Fermi Surface across a Magnetic Order-Disorder Transition in the Two-Dimensional Kondo Lattice Model: A Dynamical Cluster Approach
• Magnetic phases in the correlated Kondo-lattice model
• Metallic Ferromagnetism in the Kondo Lattice
• Mean Field study of the heavy fermion metamagnetic transition
• Metamagnetism and Lifshitz Transitions in Models for Heavy Fermions
• Spin Density Waves in the Hubbard model - A DMFT approach
• Variational Monte Carlo approach to the two-dimensional Kondo lattice model
• Coherence and metamagnetism in the two-dimensional Kondo lattice model
• Fermi surface and antiferromagnetism in the Kondo lattice: an asymptotically exact solution in d>1 Dimensions
• Ferromagnetic state in the one-dimensional Kondo lattice model
• Large and Small Fermi-Surface Spin Density Waves in the Kondo Lattice Model
• Charge Order in a Two-Dimensional Kondo Lattice Model
• Weak ferromagnetism with the Kondo screening effect in the Kondo lattice systems
• Global Phase Diagram of the Kondo Lattice: From Heavy Fermion Metals to Kondo Insulators
• Kondo screening coexisting with ferromagnetic order as a possible ground state for Kondo lattice systems
• Lifshitz phase transitions in the ferromagnetic regime of the Kondo lattice model
• Itinerant Antiferromagnetism in Infinite Dimensional Kondo Lattice
• Charge order in Kondo lattice systems
• Lifshitz Transitions in Magnetic Phases of the Periodic Anderson Model
• Spiral magnetic phases on the Kondo Lattice Model: A Hartree-Fock approach
• Low-energy properties of the Kondo lattice model
• The ground state magnetic phase diagram of the ferromagnetic Kondo-lattice model
• Fermi Surface and Magnetism in the Kondo lattice: A Continuum Field Theory Approach
• Fine structure of spectra in the antiferromagnetic phase of the Kondo lattice model

Cited by in corpus (12)

• Laser pulse driven control of charge and spin order in the two-dimensional Kondo lattice
• Magnetic states in a three-dimensional topological Kondo insulator
• Electronic transport and magnetism in the alternating stack of metallic and highly frustrated magnetic layers in Co${}_{1/3}$NbS${}_2$
• Exactly Solvable Kondo Lattice Model in Anisotropic Limit
• Kondo-lattice-mediated interactions in flat band systems
• Mutual information in heavy-fermion systems
• Antiferromagnetic phase of the Kondo-insulator
• A mean-field approach to Kondo-attractive-Hubbard model
• Quasiparticle Band Structure and Spin Excitation Spectrum of the Kondo Lattice
• Interplay between charge, magnetic and superconducting order in a Kondo lattice with an attractive Hubbard interaction
• SU($\mathbf{N}$) Kondo-Heisenberg chain: Phase diagram, Ising criticality, and the coexistence of heavy quasiparticles and valence bond solid order
• Nonlinear response induced by Ferromagnetism in a Noncentrosymmetric Kondo Lattice system