Finite-temperature spectra and quasiparticle interference in Kondo lattices: From light electrons to coherent heavy quasiparticles

Abstract

Recent advances in scanning tunneling spectroscopy performed on heavy-fermion metals provide a window onto local electronic properties of composite heavy-electron quasiparticles. Here we theoretically investigate the energy and temperature evolution of single-particle spectra and their quasiparticle interference caused by point-like impurities in the framework of a periodic Anderson model. By numerically solving dynamical-mean-field-theory equations, we are able to access all temperatures and to capture the crossover from weakly interacting c and f electrons to fully coherent heavy quasiparticles. Remarkably, this crossover occurs in a dynamical fashion at an energy-dependent crossover temperature. We study in detail the associated Fermi-surface reconstruction and characterize the incoherent regime near the Kondo temperature. Finally, we link our results to current heavy-fermion experiments.

15 pages, 12 figures

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Cited by in corpus (20)

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• Metamagnetism and Lifshitz Transitions in Models for Heavy Fermions
• Relation between exceptional points and the Kondo effect in $f$-electron materials
• Large and Small Fermi-Surface Spin Density Waves in the Kondo Lattice Model
• Scanning tunneling spectroscopy and surface quasiparticle interference in models for the strongly correlated topological insulators SmB6 and PuB6
• Pressure-driven 4$f$ localized-itinerant crossover in heavy fermion compound CeIn${}_3$: A first-principles many-body perspective
• Emergent Coherent Lattice Behavior in Kondo Nanosystems
• 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
• Fermi volume evolution and crystal field excitations in heavy-fermion compounds probed by time-domain terahertz spectroscopy
• Kondo holes in topological Kondo insulators: Spectral properties and surface quasiparticle interference
• Hybridization fluctuations in the half-filled periodic Anderson model
• A local theory for Mott-Anderson localization
• Insight into the temperature dependent properties of the ferromagnetic Kondo lattice YbNiSn
• Determinant Quantum Monte Carlo Study of Exhaustion in the Periodic Anderson Model
• Mott transitions in the Periodic Anderson Model
• Energy-scale cascade and correspondence between Mott and Kondo lattice physics