Physics – Condensed Matter – Superconductivity
Scientific paper
2000-05-18
Phys. Rev. B 62, 4066 (2000)
Physics
Condensed Matter
Superconductivity
7 pages, 6 included figures, to appear in Phys. Rev. B
Scientific paper
10.1103/PhysRevB.62.4066
We examine the normal-state temperature and doping dependence of the Hall coefficient in the context of a pair-fluctuation scenario, based on a model where itinerant electrons are hybridized with localized electron pairs via a charge exchange term. We show that an anomalous behavior of the Hall effect, qualitatively similar to that observed in high-Tc superconductors, can be attributed to the non-Fermi liquid properties of the single-particle spectral function which exhibits pseudogap features. Our calculations are based on a dynamical mean-field procedure which relates the transport coefficients to the single-particle spectral function in an exact way.
Ranninger Julius
Romano Alfonso
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