Quantum critical scaling and fluctuations in Kondo lattice materials

Abstract

We propose a new phenomenological framework for three classes of Kondo lattice materials that incorporates the interplay between the fluctuations associated with the antiferromagnetic quantum critical point and those produced by the hybridization quantum critical point that marks the end of local moment behavior. We show that these fluctuations give rise to two distinct regions of quantum critical scaling: hybridization fluctuations are responsible for the logarithmic scaling in the density of states of the heavy electron Kondo liquid that emerges below the coherence temperature T*; while the unconventional power law scaling in the resistivity that emerges at lower temperatures below T_QC may reflect the combined effects of hybridization and antiferromagnetic quantum critical fluctuations. Our framework is supported by experimental measurements on CeCoIn5, CeRhIn5 and other heavy electron materials.

12 pages, 4 figures

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Cited by in corpus (16)

• Distinct pairing symmetries of superconductivity in infinite-layer nickelates
• Hybridization dynamics in CeCoIn5 revealed by ultrafast optical spectroscopy
• Self-doping and the Mott-Kondo scenario for infinite-layer nickelate superconductors
• Nonlocal Kondo effect and quantum critical phase in heavy fermion metals
• Hybridization fluctuations in the half-filled periodic Anderson model
• A unified theory of ferromagnetic quantum phase transitions in heavy fermion metals
• Mutual information, quantum phase transition, and phase coherence in Kondo systems
• Coherence Temperature in the Diluted Periodic Anderson Model
• Determinant Quantum Monte Carlo Study of Exhaustion in the Periodic Anderson Model
• Pair density wave, unconventional superconductivity, and non-Fermi liquid quantum critical phase in frustrated Kondo lattice
• Development of long-range phase coherence on the Kondo lattice
• Spin current Kondo effect in frustrated Kondo systems
• A Simple Solvable Model for Heavy Fermion Superconductivity from the Two-Fluid Normal State
• An emerging global picture of heavy fermion physics
• Quantum impurity model for two-stage multipolar ordering and Fermi surface reconstruction
• Response of macroscopic and microscopic dynamical quantifiers to the quantum critical region