Electron scattering near an itinerant to localized electronic transition

Details Electron scattering near an itinerant to localized electronic transition Electron scattering near an itinerant to localized electronic transition

2003-02-20

arxiv.org/abs/cond-mat/0302426v1

Physics

Condensed Matter

Strongly Correlated Electrons

To appear in Phys. Rev. B

Scientific paper

10.1103/PhysRevB.67.165110

We report an unconventional temperature dependence of the resistivity in several strongly correlated systems approaching a localized to itinerant electronic transition from the itinerant electron side. The observed resistivity, proportioanl to T^(3/2)over the entire range of materials discussed, cannot be explained within the framework of existing theories. We propose a model in which the scattering of the conduction electrons by locally cooperative bond-length fluctuations in a matrix of vibronic and Fermi-liquid electrons can account for the experimental data.

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