Electrical conductivity in ferromagnetic perovskite structures

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Abstract

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
Volume79
Issue number8 PART 2A
StatePublished - Apr 15 1996
Externally publishedYes

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conduction
electrical resistivity
crossovers

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physics and Astronomy (miscellaneous)

Cite this

Electrical conductivity in ferromagnetic perovskite structures. / Zhang, Shufeng.

In: Journal of Applied Physics, Vol. 79, No. 8 PART 2A, 15.04.1996, p. 4542-4544.

Research output: Contribution to journalArticle

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