J. Phys. I France
Volume 3, Numéro 9, September 1993
Page(s) 1969 - 1972
DOI: 10.1051/jp1:1993224
J. Phys. I France 3 (1993) 1969-1972

Electronic conduction in highly anisotropic systems

A. M. Jayannavar

Institute of Physics, Sachivalaya Marg, Bhubaneswar 751005, India

(Received 23 March 1993, revised 18 May 1993, accepted 19 May 1993)

We have calculated the ratio of conductivities along the chains and perpendicular to the chains in highly anisotropic quasi-one-dimensional systems. The electronic motion along the transverse direction is viewed as a coherent inter-chain tunnelling between neighbouring chains blocked by repeated intra-chain incoherent scatterings. Our results predict intrinsically the same temperature dependence for both conductivities. It also predicts a linear dependence of the anisotropy ratio on the carrier concentration, which is absent in the earlier treatments of the same problem.

© Les Editions de Physique 1993

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