Gutman DB, Maslov DL. Anomalous c-axis transport in layered metals.
PHYSICAL REVIEW LETTERS 2007;
99:196602. [PMID:
18233098 DOI:
10.1103/physrevlett.99.196602]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2007] [Revised: 07/16/2007] [Indexed: 05/25/2023]
Abstract
Transport in metals with a strongly anisotropic single-particle spectrum is studied. Coherent band transport in all directions, described by the standard Boltzmann equation, is shown to withstand both elastic and inelastic scattering as long as EFtau >> 1. A model of phonon-assisted tunneling via resonant states located in between the layers is suggested to explain a nonmonotonic temperature dependence of the c-axis resistivity observed in experiments.
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