Long-range exchange coupling between a ferromagnet and an antiferromagnet across a nonmagnetic spacer layer

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dc.contributor.authorGokemeijer, N.J.
dc.contributor.authorAmbrose, T.
dc.contributor.authorChien, C.-L.
dc.contributor.authorWang, N.
dc.contributor.authorFung, K.K.
dc.date.accessioned2016-02-26T18:18:20Z
dc.date.available2016-02-26T18:18:20Z
dc.date.issued1997-04-15
dc.description.abstractThe antiferromagnet/ferromagnet exchange coupling giving rise to a shifted hysteresis loop has usually been considered an interfacial effect. We show evidence that this exchange coupling between an antiferromagnet (CoO) and a ferromagnet (Ni81Fe19) is long range in nature. Exchange coupling has been observed in tri-layer films consisting of a nonmagnetic noble metal (Ag, Au, and Cu) spacer layer sandwiched between 300 Å CoO and 300 Å NiFe. The strength of the coupling decreases with increasing spacer layer thickness and vanishes at about 55 Å. This suggests that the antiferromagnetic/ferromagnetic exchange coupling is beyond an interfacial effect, and that conduction electrons may be involved in the mediation of the couplingen_US
dc.identifier.citationSource: Journal of Applied Physics 15 April 1997, vol.81, no.8, pp. 4999-5001en_US
dc.identifier.urihttp://jhir.library.jhu.edu/handle/1774.2/38301
dc.language.isoen_USen_US
dc.publisherAmerican Institute of Physicsen_US
dc.subjectNi81Fe19-CoOen_US
dc.subjectlong-range exchange couplingen_US
dc.subjectantiferromagneten_US
dc.subjectferromagneten_US
dc.subjectnickel alloysen_US
dc.subjectmagnetic hysteresisen_US
dc.subjectlong-range ordeen_US
dc.subjectinterfacial effecten_US
dc.subjectconduction electronsen_US
dc.subjectAu spacer layeren_US
dc.subjectCu spacer layeren_US
dc.subjectiron alloysen_US
dc.subjectferromagnetic materialsen_US
dc.subjectexchange interactions (electron)en_US
dc.subjectcobalt compoundsen_US
dc.subjectantiferromagnetic materialsen_US
dc.subjectNi81Fe19-Ag-CoOen_US
dc.subjectNi81Fe19-Au-CoOen_US
dc.subjectNi81Fe19-Cu-CoOen_US
dc.titleLong-range exchange coupling between a ferromagnet and an antiferromagnet across a nonmagnetic spacer layeren_US
dc.typeArticleen_US
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