Resistivity peculiarities in systems with lattice distortions

Details Resistivity peculiarities in systems with lattice distortions Resistivity peculiarities in systems with lattice distortions

2001-10-30

arxiv.org/abs/cond-mat/0110635v1

Physica C Vol.364, pg.222 (2001)

Physics

Condensed Matter

Statistical Mechanics

3 pages, 2 figures

Scientific paper

10.1016/S0921-4534(01)00757-2

We study a molecular lattice Hamiltonian in which polaronic charge carriers interact with non linear potentials provided by local atomic fluctuations between two equilibrium sites. The path integral formalism is applied to select the class of atomic oscillations which mainly contributes to the partition function and the electrical resistivity is computed in a number of representative cases. Non metallic resistivity behaviors are found at temperatures above $\simeq 100K$.

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