Evolution of the Kondo lattice electronic structure above the transport coherence temperature

Abstract

The temperature-dependent evolution of the Kondo lattice is a long-standing topic of theoretical and experimental investigation and yet it lacks a truly microscopic description of the relation of the basic $f$-$d$ hybridization processes to the fundamental temperature scales of Kondo screening and Fermi-liquid lattice coherence. Here, the temperature-dependence of $f$-$d$ hybridized band dispersions and Fermi-energy $f$ spectral weight in the Kondo lattice system CeCoIn${}_5$ is investigated using $f$-resonant angle-resolved photoemission (ARPES) with sufficient detail to allow direct comparison to first principles dynamical mean field theory (DMFT) calculations containing full realism of crystalline electric field states. The ARPES results, for two orthogonal (001) and (100) cleaved surfaces and three different $f$-$d$ hybridization scenarios, with additional microscopic insight provided by DMFT, reveal $f$ participation in the Fermi surface at temperatures much higher than the lattice coherence temperature, $T^{\ast }\approx$ 45 K, commonly believed to be the onset for such behavior. The identification of a $T$-dependent crystalline electric field degeneracy crossover in the DMFT theory $below$ $T^{\ast }$ is specifically highlighted.

10 pages, 5 figures plus supplement 11 pages, 10 figures

References in corpus (17)

• Quantum Criticality in Heavy Fermion Metals
• Heavy Fermions and Quantum Phase Transitions
• Modelling the Localized to Itinerant Electronic Transition in the Heavy Fermion System CeIrIn5
• Visualizing heavy fermions emerging in a quantum critical Kondo lattice
• Direct observation of how the heavy fermion state develops in CeCoIn5
• Universal Behavior in Heavy Electron Materials
• Crystal-field and Kondo scale investigation of CeMIn5 (M=Co, Ir and Rh): a combined x-ray absorption and inelastic neutron study
• Magnetic-Field Dependence of the YbRh2Si2 Fermi Surface
• High Resolution Photoemission Study on Low-T_K Ce Systems: Kondo Resonance, Crystal Field Structures, and their Temperature Dependence
• Fermi surface topology of the two-dimensional Kondo lattice model: a dynamical cluster approximation approach
• Direct observation of quasi-particle band in CeIrIn${}_5$: Angle-resolved photoemission spectroscopy study
• The electronic structure of CeCoIn5 from angle-resolved photoemission spectroscopy II: Hybridization effects
• Quantitative study of the f occupation in CeMIn5 and other cerium compounds with hard x-rays
• Multiple temperature scales of the periodic Anderson model: the slave bosons approach
• Insight into the temperature dependent properties of the ferromagnetic Kondo lattice YbNiSn
• Energy Scales of the Doped Anderson Lattice Model
• Quasiparticle interference of heavy fermions in resonant X-ray scattering

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