Enhancement of spin correlation in Cr2O3 Film above Néel temperature induced by forming a junction with Fe2O3 Layer: First-principles and monte-carlo study

Yohei Kota, Hiroshi Imamura, Munetaka Sasaki

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

We propose an approach to enhance the antiferromagnetic spin correlation in the Cr2O3 film by forming a junction with the Fe2O3 layer. First-principles calculations and Monte-Carlo simulations were performed to evaluate the exchange coupling constant between the Cr and Fe spin and the spin correlation functions of the Fe2O3/Cr2O3 bilayer system in a finite temperature. We found that above the Néel temperature of Cr2O3, the length of the antiferromagnetic spin correlation in the bilayer system is increased by more than twice as that of the bulk system.

Original languageEnglish
Article number6971656
JournalIEEE Transactions on Magnetics
Volume50
Issue number11
DOIs
Publication statusPublished - 2014 Nov 1

Keywords

  • Classical Heisenberg model
  • CrO
  • FeO
  • Monte-Carlo simulation
  • first-principles calculation
  • spin correlation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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