Spontaneous exchange bias in a nanocomposite of BiFeO3-Bi2Fe4O9

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dc.contributor.authorMaity, Tuhin
dc.contributor.authorGoswami, Sudipta
dc.contributor.authorBhattacharya, Dipten
dc.contributor.authorDas, Gopes C.
dc.contributor.authorRoy, Saibal
dc.date.accessioned2017-09-20T10:06:33Z
dc.date.available2017-09-20T10:06:33Z
dc.date.issued2013
dc.description.abstractWe have observed a large as well as path-dependent spontaneous exchange bias (H-SEB) (similar to 30-60 mT) in a nanocomposite of BiFeO3-Bi2Fe4O9 across 5-300K when it is measured in an unmagnetized state following zero-field cooling and appropriate demagnetization. The path dependency yields a variation in the exchange bias depending on the sign of the starting field and the path followed in tracing the hysteresis loop. The asymmetry thus observed-Delta H-SEB-is found to be decreasing nonmonotonically across 5-300K with a peak around 200K. The Delta H-SEB together with large H-SEB could have significant ramification in tuning the exchange bias driven effects and consequent applications. (c) 2013 American Institute of Physics.en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid17D916
dc.identifier.citationMaity, T., Goswami, S., Bhattacharya, D., Das, G. C. and Roy, S. (2013) 'Spontaneous exchange bias in a nanocomposite of BiFeO3-Bi2Fe4O9', Journal of Applied Physics, 113(17), 17D916 (3pp). doi: 10.1063/1.4796149en
dc.identifier.doi10.1063/1.4796149
dc.identifier.endpage3
dc.identifier.issn0021-8979
dc.identifier.issn1089-7550
dc.identifier.issued17
dc.identifier.journaltitleJournal of Applied Physicsen
dc.identifier.startpage1
dc.identifier.urihttps://hdl.handle.net/10468/4726
dc.identifier.volume113
dc.language.isoenen
dc.publisherAIP Publishingen
dc.relation.ispartof12th Joint MMM-Intermag Conference
dc.relation.urihttp://aip.scitation.org/doi/10.1063/1.4796149
dc.rights© 2013, American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Maity, T., Goswami, S., Bhattacharya, D., Das, G. C. and Roy, S. (2013) 'Spontaneous exchange bias in a nanocomposite of BiFeO3-Bi2Fe4O9', Journal of Applied Physics, 113(17), 17D916 (3pp). doi: 10.1063/1.4796149 and may be found at http://aip.scitation.org/doi/10.1063/1.4796149en
dc.subjectExchange interactionsen
dc.subjectNanocompositesen
dc.subjectAtomic force microscopyen
dc.subjectAntiferromagnetismen
dc.subjectMagnetic anisotropyen
dc.titleSpontaneous exchange bias in a nanocomposite of BiFeO3-Bi2Fe4O9en
dc.typeArticle (peer-reviewed)en
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