Heavy fermions and rattling motions in the periodic Anderson–Holstein model

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2006
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Abstract
We investigate a heavy fermion behaviour and a deformation of an effective potential of the ions due to electron–phonon interaction for the periodic Anderson–Holstein model by using the dynamical mean-field theory combined with the exact diagonalization method. For the strong electron–phonon coupling, the system shows an anomalous heavy fermion behaviour with a large lattice fluctuation and an extreme phonon softening, and then an effective potential for the ions changes from a simple harmonic potential for the non-interacting case to a double-well potential for the strong electron–phonon coupling.
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ono2006physicaheavy Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors K. Mitsumoto,Y. Ono;K. Mitsumoto;Y. Ono;
Journal physica b: condensed matter
Year 2006
DOI
10.1016/j.physb.2006.01.098
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