Correlating uncompensated antiferromagnetic moments and exchange coupling interactions in interface ion-beam bombarded Co90Fe10/CoFe-oxide bilayers

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dc.contributor.authorShueh, Cen_AU
dc.contributor.authorChen, PSen_AU
dc.contributor.authorCortie, DLen_AU
dc.contributor.authorKlose, Fen_AU
dc.contributor.authorChen, WCen_AU
dc.contributor.authorWu, THen_AU
dc.contributor.authorvan Lierop, Jen_AU
dc.contributor.authorLin, KWen_AU
dc.date.accessioned2014-04-28T00:04:02Zen_AU
dc.date.available2014-04-28T00:04:02Zen_AU
dc.date.issued2012-11-01en_AU
dc.date.statistics2014-04-28en_AU
dc.description.abstractThe coercivity and exchange bias field of ferro-/antiferromagnetic Co(90)Fe(10)/CoFe-oxide bilayers were studied as function of the surface morphology of the bottom CoFe-oxide layer. The CoFe-oxide surface structure was varied systematically by low energy (0-70 V) Argon ion-beam bombardment before subsequent deposition of the Co(90)Fe(10) layer. Transmission electron microscopy results showed that the bilayer consisted of hcp Co(90)Fe(10) and rock-salt CoFe-oxide. At low temperatures, enhanced coercivities and exchange bias fields with increasing ion-beam bombardment energy were observed, which are attributed to defects and uncompensated moments created near the CoFe-oxide surface in increasing amounts with larger ion-beam bombardment energies. Magnetometry results also showed an increasing divergence of the low field temperature dependent magnetization [Delta M(T)] between field-cooling and zero-field-cooling processes, and an increasing blocking temperature with increasing ion-beam bombardment energy. © 2012 IOP Publishing LTD.en_AU
dc.identifier.articlenumber11PG02en_AU
dc.identifier.citationShueh, C., Chen, P. S., Cortie, D., Klose, F., Chen, W. C., Wu, T. H., van Lierop, J., & Lin, K. W. (2012). Correlating uncompensated antiferromagnetic moments and exchange coupling interactions in interface ion-beam bombarded Co90Fe10/CoFe-oxide bilayers. Japanese Journal of Applied Physics, 51(11S), 11PG02. doi:10.1143/JJAP.51.11PG02en_AU
dc.identifier.govdoc4756en_AU
dc.identifier.issn0021-4922en_AU
dc.identifier.issue11Sen_AU
dc.identifier.journaltitleJapanese Journal of Applied Physicsen_AU
dc.identifier.urihttp://dx.doi.org/10.1143/JJAP.51.11PG02en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/5498en_AU
dc.identifier.volume51en_AU
dc.language.isoenen_AU
dc.publisherIOP Publishing LTDen_AU
dc.subjectIon beamsen_AU
dc.subjectElectron microscopyen_AU
dc.subjectAntiferromagnetismen_AU
dc.subjectFerromagnetismen_AU
dc.subjectMorphologyen_AU
dc.subjectArgonen_AU
dc.titleCorrelating uncompensated antiferromagnetic moments and exchange coupling interactions in interface ion-beam bombarded Co90Fe10/CoFe-oxide bilayersen_AU
dc.typeJournal Articleen_AU
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