Magnetization reversal of the ferromagnetic layer in IrMn/CoFe bilayers

Y. G. Wang*, A. K. Petford-Long

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

The magnetization reversal of the ferromagnetic layer in Ir/CoFe exchange-coupled bilayer films with different antiferromagnetic (AFM) layer thickness was investigated. Thermally activated reversal of the antiferromagnetic layer with a large time constant resulted in an increasing shift of the entire hysteresis loop towards zero field with increased period of time spent at negative saturation. The energy barriers for thermally activated reversal of the antiferroamgnetic layer decreased so the changes in the antiferromagnetic layer became more significant.

Original languageEnglish (US)
Pages (from-to)6699-6707
Number of pages9
JournalJournal of Applied Physics
Volume92
Issue number11
DOIs
StatePublished - Dec 1 2002

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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