Doping-induced band shifts and Lifshitz transitions in heavy-fermion metals

Abstract

For some heavy-fermion compounds, it has been suggested that a Fermi-surface-changing Lifshitz transition, which can be driven, e.g., by varying an applied magnetic field, occurs inside the heavy- fermion regime. Here we discuss, based on microscopic calculations, how the location of such a transition can be influenced by carrier doping. Due to strong correlations, a heavy band does not shift rigidly with the chemical potential. Intriguingly, we find that the actual shift is determined by the interplay of heavy and additional light bands crossing the Fermi level: doped carriers tend to populate heavy and light bands equally, despite the fact that the latter contribute a small density of states of excitations only. This invalidates naive estimates of the transition shift based on the low-temperature specific heat of the heavy Fermi liquid. We discuss applications of our results.

7 Pages, 6 Figures

References in corpus (16)

• Fermi-liquid instabilities at magnetic quantum phase transitions
• Heavy Fermions and Quantum Phase Transitions
• Fractionalized Fermi liquids
• Multiple energy scales at a quantum critical point
• Fermi-surface collapse and dynamical scaling near a quantum critical point
• Kondo Breakdown as a Selective Mott Transition in the Anderson Lattice
• Orbital-selective Mott transitions: Heavy fermions and beyond
• Quantum and Topological Criticalities of Lifshitz Transition in Two-Dimensional Correlated Electron Systems
• Zeeman-driven Lifshitz transition: A scenario for the Fermi-surface reconstruction in YbRh2Si2
• Fermi surface topology of the two-dimensional Kondo lattice model: a dynamical cluster approximation approach
• Fermi Surface Reconstruction in CeRh${}_{1-x}$Co${}_x$In${}_5$
• Evolution of the Fermi Surface across a Magnetic Order-Disorder Transition in the Two-Dimensional Kondo Lattice Model: A Dynamical Cluster Approach
• Metamagnetism and Lifshitz Transitions in Models for Heavy Fermions
• Coherence and metamagnetism in the two-dimensional Kondo lattice model
• Kondo volume collapse, Kondo breakdown, and Fermi surface transitions in heavy-fermion metals
• Thermoelectric transport across the metamagnetic transition of CeRu2Si2

Cited by in corpus (6)

• Field-Induced Lifshitz Transition without Metamagnetism in CeIrIn${}_5$
• Incorporation of Generalized Uncertainty Principle into Lifshitz Field Theories
• Lifshitz Transitions in the Ferromagnetic Superconductor UCoGe
• Topological Lifshitz Transitions, Orbital Currents, and Interactions in Low-dimensional Fermi Gases in Synthetic Gauge Fields
• Non-Local Deformation of a Supersymmetric Field Theory
• Reply to Comment by S. Friedemann et al. on "Zeeman-Driven Lifshitz Transition: A Model for the Experimentally Observed Fermi-Surface Reconstruction in YbRh2Si2"