Monte Carlo study of the spin transport in magnetic materials

Y. Magnin, K. Akabli, H. T. Diep, I. Harada

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The resistivity in magnetic materials has been theoretically shown to depend on the spin-spin correlation function which in turn depends on the magnetic field, the density of conduction electron, the magnetic ordering stability, etc. However, these theories involved a lot of approximations, so their validity remained to be confirmed. The purpose of this work is to show by newly improved extensive Monte Carlo (MC) simulation the resistivity of the spin resistivity from low-T ordered phase to high-T paramagnetic phase in ferromagnetic and antiferromagnetic films. We take into account the interaction between the itinerant spins and the localized lattice spins as well as the interaction between itinerant spins themselves. We show that in ferromagnets the resistivity shows a sharp peak at the magnetic phase transition in agreement with previous theories in spite of their numerous approximations. Resistivity in antiferromagnets on the other hand shows no peak for the SC, BCC and diamond lattices. Discussion on the origin of these resistivity behaviors is given.

Original languageEnglish
Pages (from-to)S204-S209
JournalComputational Materials Science
Volume49
Issue number4 SUPPL.
DOIs
Publication statusPublished - Oct 2010

Keywords

  • Magnetic materials
  • Magnetic resistivity
  • Monte Carlo simulation
  • Spin transport

ASJC Scopus subject areas

  • Computer Science(all)
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Physics and Astronomy(all)
  • Computational Mathematics

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