Metamagnetism and Lifshitz Transitions in Models for Heavy Fermions

Abstract

We investigate metamagnetic transitions in models for heavy fermions by considering the doped Kondo lattice model in two dimensions. Results are obtained within the framework of dynamical mean field and dynamical cluster approximations. Universal magnetization curves for different temperatures and Kondo couplings develop upon scaling with the lattice coherence temperature. Furthermore, the coupling of the local moments to the magnetic field is varied to take into account the different Landé factors of localized and itinerant electrons. The competition between the lattice coherence scale and the Zeeman energy scale allows for two interpretations of the metamagnetism in heavy fermions: Kondo breakdown or Lifshitz transitions. By tracking the single-particle residue through the transition, we can uniquely conclude in favor of the Lifshitz transition scenario. In this scenario, a quasiparticle band drops below the Fermi energy which leads to a change in topology of the Fermi surface.

arXiv comment8 pages, 7 figures

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• Incorporation of Generalized Uncertainty Principle into Lifshitz Field Theories
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• Lifshitz Transitions in the Ferromagnetic Superconductor UCoGe
• Magnetic Lifshitz transition and its consequences in multi-band iron-based superconductors
• Fermi Surface Properties, Metamgnetic Transition and Quantum Phase Transition of CeRu${}_2$Si${}_2$ and Its Alloys Probed by the dHvA Effect--Fermi Surface Studies on the Itinerant and Localized Dichotomy of $f$ Electron Nature
• Lifshitz phase transitions in the ferromagnetic regime of the Kondo lattice model
• Ferromagnetism and Fermi-surface transition in the periodic Anderson model: Second-order phase transition without symmetry breaking
• Lifshitz Transitions in Magnetic Phases of the Periodic Anderson Model
• Metamagnetism and the Fifth Order Susceptibility in UPt3
• Lifshitz transitions and quasiparticle de-renormalization in YbRh${}_2$Si${}_2$
• Ferromagnetic Quantum Criticality Studied by Hall Effect Measurements in UCoAl
• Quantum criticality in itinerant metamagnets
• Field induced Lifshitz transition in UPt${}_2$Si${}_2$: Fermi surface under extreme conditions
• Phase diagram of CeSb${}_2$ from magnetostriction and magnetization measurements: Evidence for ferrimagnetic and antiferromagnetic states
• Competition of striped magnetic order and partial Kondo screened state in the Kondo lattice model
• Field evolution of quantum critical and heavy Fermi-liquid components in the magnetization of the mixed valence compound beta-YbAlB4
• Half-filled Kondo lattice on the honeycomb lattice
• Transport Spectroscopy of the Field Induced Cascade of Lifshitz Transitions in YbRh2Si2
• Doping-induced band shifts and Lifshitz transitions in heavy-fermion metals
• Kondo screening and beyond: an x-ray absorption and dichroism study of CePt${}_5$/Pt(111)
• Non-Local Deformation of a Supersymmetric Field Theory
• Nature of field-induced transitions and hysteretic magnetoresistance in non-collinear antiferromagnet EuIn2As2
• Temperature Dependence of Nonlinear Susceptibilities in an Infinite Range Interaction Model
• Lifshitz Transition in Triangular Lattice Kondo-Heisenberg Model