Understanding the Heavy Fermion Phenomenology from Microscopic Model

Abstract

We solve the 3D periodic Anderson model via two impurity DMFT. We obtain the temperature v.s. hybridization phase diagram. In approaching the quantum critical point (QCP) both the Neel and lattice Kondo temperatures decrease and they do not cross at the lowest temperature we reached. While strong ferromagnetic spin fluctuation on the Kondo side is observed, our result indicates the critical static spin susceptibility is local in space at the QCP. We observe in the crossover region logarithmic temperature dependence in the specific heat coefficient and spin susceptibility.

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• Hyperfine Interactions in the Heavy Fermion CeMIn_5 Systems
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• Quantum phase transition in a two-dimensional Kondo-Heisenberg model: a Schwinger-boson large-N approach
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• Spatial fluctuations of spin and orbital in two-orbital Hubbard model
• Field induced quantum phase transition in the anisotropic Kondo necklace model
• The surface density of states of layered {\it f}-electron materials
• Universal scaling in the Knight shift anomaly of doped periodic Anderson model
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• Superconducting pairing of interacting electrons: implications from the two-impurity Anderson model
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