Magnetisation reversal of the ferromagnetic layer in IrMn/CoFe bilayer films

Y. G. Wang, A. K. Petford-Long, T. Hughes, H. Laidler, K. O’Grady, M. T. Kief

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

The magnetisation reversal of the ferromagnetic layer in IrMn/CoFe exchange-coupled films has been investigated using Lorentz microscopy and magnetometry. Results are presented for an IrMn5nm/CoFe10nm film. Asymmetry of the reversal mechanism around the magnetisation loop, coercivity enhancement and time-dependent reduction of reversal field have been explained by the existence of pinning sites and thermal activation in the antiferromagnetic layer.

Original languageEnglish (US)
Pages (from-to)1073-1076
Number of pages4
JournalJournal of Magnetism and Magnetic Materials
Volume242-245
DOIs
StatePublished - Apr 2002

Keywords

  • Bilayer
  • Exchange biasing
  • Lorentz electron microscopy
  • Magnetisation reversal
  • Thermal activation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'Magnetisation reversal of the ferromagnetic layer in IrMn/CoFe bilayer films'. Together they form a unique fingerprint.

Cite this