Adiabatic and isothermal resistivities

R. S. Fishman

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

The force-balance method is used to calculate the isothermal resistivity to first order in the electric field. To lowest order in the impurity potential, the isothermal resistivity disagrees with the adiabatic results of the Kubo formula and the Boltzmann equation. However, an expansion of the isothermal resistivity in powers of the impurity potential is divergent, with two sets of divergent terms. The first set arises from the density matrix of the relative electron-phonon system. The second set arises from the explicit dependence of the density matrix on the electric field, which was ignored by force-balance calculations. These divergent contributions are calculated inductively, by applying a recursion relation for the Greens functions. Using the 2t limit of van Hove, I show that the resummation of these divergent terms yields the same result for the resistivity as the adiabatic calculations, in direct analogy with the work of Argyres and Sigel, and Huberman and Chester.

Original languageEnglish
Pages (from-to)2994-3004
Number of pages11
JournalPhysical Review B
Volume39
Issue number5
DOIs
StatePublished - 1989

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