Paramagnetic-ferromagnetic transition in a double-exchange model

Eugene Kogan, Mark Auslender

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We study paramagnetic-ferromagnetic transition due to exchange interaction between classical localized spins on a lattice and conduction electrons. By solving the equations of dynamical mean field theory, we find explicit formula for Curie temperature at arbitrary Hund coupling, electron band structure and concentration. The results of numerical simulations of the Curie temperature for the semi-circular electron density of states model are presented.

Original languageEnglish
Pages (from-to)286-287
Number of pages2
JournalPhysica B: Condensed Matter
Volume378-380
Issue numberSPEC. ISS.
DOIs
StatePublished - 1 May 2006

Keywords

  • Double-exchange model
  • Dynamical mean field theory
  • Ferromagnetic order
  • Magnetism
  • Strong correlations

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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