Correlation effect on hopping conduction in a magnetic field

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8 Citations (Scopus)

Abstract

Both the correlation effect and the interference effect are taken into account in hopping conduction in the strongly Anderson-localized regime. A new mechanism for the positive magnetoconductance is suggested: the Zeeman effect increases the number of high-spin states, in which the orbitals at the Fermi level are more extended than in the low-spin states owing to the weaker short-range correlation effect. The magnetoconductance is independent of the direction of the magnetic field and can be observed in nearest-neighbor hopping conduction.

Original languageEnglish
Pages (from-to)4933-4936
Number of pages4
JournalPhysical Review B
Volume48
Issue number7
DOIs
Publication statusPublished - 1993

ASJC Scopus subject areas

  • Condensed Matter Physics

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