Schwinger boson approach for the dynamical mean-field theory of the Kondo lattice

Abstract

We apply the dynamical large-$N$ Schwinger boson technique as an impurity solver for the dynamical mean-field theory (DMFT) calculations of the Kondo lattice model. Our approach captures the hybridization physics through the DMFT self-consistency that is missing in the pure Schwinger boson calculations with independent electron baths. The resulting thermodynamic and transport properties are in qualitative agreement with more rigorous calculations and give the correct crossover behavior over a wide temperature range from the local moment regime to the Fermi liquid. Our method may be further extended to combine with the density functional theory for efficient material calculations.

7 pages, 7 figures

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Cited by in corpus (7)

• Emergent Spinon Dispersion and Symmetry Breaking in Two-Channel Kondo Lattices
• ${\mathbb{Z}}_2$ metallic spin liquid on a frustrated Kondo lattice
• Development of long-range phase coherence on the Kondo lattice
• Altermagnetism in Heavy Fermion Systems: Mean-Field study on Kondo Lattice
• Dynamic charge Kondo effect and a slave fermion approach to the Mott transition
• Interplay of charge and spin fluctuations in a Hund's coupled impurity
• Dynamic-RKKY induced time-reversal symmetry breaking and chiral spin liquids