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.

References in corpus (2)

• Weak magnetism and non-Fermi liquids near heavy-fermion critical points
• Fractionalized Fermi liquids

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• Coherence scale of coupled Anderson impurities
• Hyperfine Interactions in the Heavy Fermion CeMIn_5 Systems
• Charge order in Kondo lattice systems
• Kondo Lattice Model with Finite Temperature Lanczos Method
• Green's function approach to quantum criticality in the anisotropic Kondo-necklace model
• Superconducting pairing of interacting electrons: implications from the two-impurity Anderson model