Electrical conductivity in ferromagnetic perovskite structures

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41 Scopus citations


A spin-polaron Hamiltonian is proposed to study the electrical conductivity in perovskite structures. A crossover from the metallic conduction at low temperatures to the hopping-type conduction at high temperature is calculated within the proposed model Hamiltonian. It is found that most of the experimental observations on resistivity and colossal magnetoresistance can be well explained with the assumption of the existence of spin clusters.

Original languageEnglish (US)
Pages (from-to)4542-4544
Number of pages3
JournalJournal of Applied Physics
Issue number8 PART 2A
StatePublished - Apr 15 1996

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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