Exchange interaction and magnetic phase transition in layered Fe/Au superlattices

Jian Tao Wang, Lei Zhou, Ding Sheng Wang, Yoshiyuki Kawazoe

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

In order to study the finite-temperature properties of the layered Fe/Au superlattice, Monte Carlo (MC) simulations are carried out based on a Heisenberg model with the exchange parameters extracted from the ab initio total energies and a phenomenological anisotropy constant. It is argued, that the Curie temperature is rather insensitive to the anisotropy and is essentially determined by the ab initio exchange parameters. Due to the reduced coordination number of the magnetic atoms at interfaces, the Curie temperature obtained by this ab initio-MC scheme decreases as decreasing of Fe layer thickness is governed essentially by Weiss'law.

Original languageEnglish
Pages (from-to)633-634
Number of pages2
JournalJournal of Magnetism and Magnetic Materials
Volume226-230
Issue numberPART I
DOIs
Publication statusPublished - 2001

Keywords

  • Curie temperature
  • Exchange interaction
  • Ferromagnetic multilayer
  • Monte carlo simulation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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