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Title: Correlation between perpendicular exchange bias and magnetic anisotropy in IrMn/[Co/Pt](n) and [Pt/Co](n)/IrMn multilayers
Sponsor: Science Foundation Ireland
Author's Homepage:
Keywords: Physics
Issue Date: 2005
Publisher: American Institute of Physics
Citation: S. van Dijken, J. Moritz and J.M.D. Coey 'Correlation between perpendicular exchange bias and magnetic anisotropy in IrMn/[Co/Pt](n) and [Pt/Co](n)/IrMn multilayers' in Journal of Applied Physics, 97, (6), 2005, 063908
Series/Report no.: Journal of Applied Physics
Abstract: Perpendicular exchange bias has been observed for IrMn/[Co/Pt]n and [Pt/Co]n/IrMn multilayers in the as-deposited state. The exchange bias field is largest when the IrMn film is grown on magnetically saturated Co/Pt multilayers (8.12 mT for n = 3), whereas it is considerably smaller when domain formation in the IrMn film occurs before Co/Pt deposition (3.30 mT for n = 3). After annealing at 220 °C in an out-of-plane magnetic field the perpendicular exchange bias field and magnetic anisotropy are considerably larger for the Co/Pt multilayers with an IrMn film at the bottom. The apparent correlation between bias and anisotropy is explained by the dependence of the perpendicular exchange bias field on the orientation of the Co spins near the Co/IrMn interface.
Description: PUBLISHED
Appears in Collections:Physics (Scholarly Publications)

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