Effects of impurities on the metal-insulator transition

T. M. Rice, W. F. Brinkman

Research output: Contribution to journalArticlepeer-review

47 Scopus citations

Abstract

The effect of impurities on the critical interaction strength for the Mott transition has been investigated using an extension of the Gutzwiller approach to correlation in the metallic state. It is shown that the band narrowing due to impurities causes a reduction of the effective interaction necessary for the transition to the insulating state. The residual resistivity due to impurity scattering is considered and it is argued that the conductivity can be written as the product of the Fermi-surface area and the mean free path. Since the latter is limited by the average impurity separation the residual resistivity is bounded. This upper bound appears to be violated for Cr-doped V2O3.

Original languageEnglish (US)
Pages (from-to)4350-4357
Number of pages8
JournalPhysical Review B
Volume5
Issue number11
DOIs
StatePublished - Jan 1 1972
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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