Influence of Mn diffusion on IrMn thickness threshold for the onset of exchange bias in IrMn/Co bilayers

In this work, we studied the influence of the buffer layer composition on the IrMn thickness threshold for the onset of exchange bias in IrMn/Co bilayers. By means of magnetometry, x-ray absorption and x-ray photoelectron spectroscopy, we investigated the magnetic and chemical properties of the stac...

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Published inJournal of physics. Conference series Vol. 903; no. 1; pp. 12061 - 12064
Main Authors Vinai, G, Frangou, L, Castan-Guerrero, C, Bonanni, V, Gobaut, B, Auffret, S, Prejbeanu, I L, Dieny, B, Baltz, V, Torelli, P
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.10.2017
IOP Science
Subjects
Bias
Bilayers
Buffer layers
Chemical properties
Condensed Matter
Copper
Diffusion layers
Exchanging
Magnetic measurement
Magnetic properties
Manganese
Photoelectrons
Physics
Thickness
X ray absorption
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Summary:In this work, we studied the influence of the buffer layer composition on the IrMn thickness threshold for the onset of exchange bias in IrMn/Co bilayers. By means of magnetometry, x-ray absorption and x-ray photoelectron spectroscopy, we investigated the magnetic and chemical properties of the stacks. We demonstrated a higher diffusion of Mn through the Co layer in the case of a Cu buffer layer. This is consistent with the observation of larger IrMn thickness threshold for the onset of exchange bias.
ISSN:1742-6588
1742-6596
1742-6596
1742-6588
DOI:10.1088/1742-6596/903/1/012061