Understanding the Heavy Fermion Phenomenology from Microscopic Model

Details Understanding the Heavy Fermion Phenomenology from Microscopic Model Understanding the Heavy Fermion Phenomenology from Microscopic Model

2005-01-09

arxiv.org/abs/cond-mat/0501176v2

Phys. Rev. Lett. 95, 016402 (2005)

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

10.1103/PhysRevLett.95.016402

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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