Coherence of polaronic transport in layered metals

Details Coherence of polaronic transport in layered metals Coherence of polaronic transport in layered metals

2004-05-25

arxiv.org/abs/cond-mat/0405572v1

J. Phys.: Condens. Matter 16 (2004) 6695-6712

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

13 pages, long version of Phys. Rev. B 68, 081101(R) (2003)

Scientific paper

10.1088/0953-8984/16/37/006

Layered systems shows anisotropic transport properties. The interlayer conductivity show a general temperature dependence for a wide class of materials. This can be understood if conduction occurs in two different channels activated at different temperatures. We show that the characteristic temperature dependence can be explained using a polaron model for the transport. The results show an intuitive interpretation in terms of coherent and incoherent quasi-particles within the layers. Further, we extract results for the magnetoresistance, thermopower, spectral function and optical conductivity for the model and discuss application to experiments.

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