Training Induced Positive Exchange Bias in NiFe/IrMn Bilayers

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dc.creatorMishra, S. K.
dc.creatorRadu, F.
dc.creatorDürr, H. A.
dc.creatorEberhardt, W.
dc.date2009-02-19
dc.date2009-03-07
dc.date.accessioned2026-07-07T13:10:27Z
dc.date.available2026-07-07T13:10:27Z
dc.descriptionPositive exchange bias has been observed in the Ni$_{81}$Fe$_{19}$/Ir$_{20}$Mn$_{80}$ bilayer system via soft x-ray resonant magnetic scattering. After field cooling of the system through the blocking temperature of the antiferromagnet, an initial conventional negative exchange bias is removed after training i. e. successive magnetization reversals, resulting in a positive exchange bias for a temperature range down to 30 K below the blocking temperature (450 K). This new manifestation of magnetic training is discussed in terms of metastable magnetic disorder at the magnetically frustrated interface during magnetization reversal.
dc.description4 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0902.3427
dc.identifierhttp://arxiv.org/abs/0902.3427
dc.identifierPhys. Rev. Lett. 102, 177208 (2009)
dc.identifierdoi:10.1103/PhysRevLett.102.177208
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/229015
dc.subjectMaterials Science
dc.titleTraining Induced Positive Exchange Bias in NiFe/IrMn Bilayers
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