Asymmetric ascending and descending loop shift exchange bias in Bi2Fe4O9-BiFeO3 nanocomposites

Simple item page
dc.contributor.authorMaity, Tuhin
dc.contributor.authorRoy, Saibal
dc.contributor.funderHorizon 2020en
dc.contributor.funderIrish Research Councilen
dc.date.accessioned2021-11-18T16:08:51Z
dc.date.available2021-11-18T16:08:51Z
dc.date.issued2019-09-03
dc.description.abstractWe show detail study of asymmetric exchange bias originating from asymmetric behaviour of ascending and descending loops of the magnetic hysteresis of Bi2Fe4O9-BiFeO3 multiferroics nanocomposites. Detail magnetometry study reveals the co-existence of super spin glass (SSG) and dilute antiferromagnet in a field (DAFF) at the interface between antiferromagnetic (AFM) BiFeO3 and ferromagnetic (FM) Bi2Fe4O9 in nanocomposite particles. The interfacial spins behave differently for positive and negative fields and result into asymmetric exchange bias, which has been precisely identified by several critical magnetic measurements such as training effect, stop & wait protocol, isothermal remanence (IRM) & thermoremanence (TRM) measurements, and high field relaxation measurement. The DAFF spins, which generate non-switchable unidirectional anisotropy at the complex FM-SSG-DAFF-AFM interface below Vogel-Fulcher freezing temperature of BiFeO3 at 29.4 K, are solely responsible for such asymmetry in exchange bias.en
dc.description.sponsorshipIrish Research Council (Project No. GOIPD/2016/474))en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid165783en
dc.identifier.citationMaity, T. and Roy, S. (2020) 'Asymmetric ascending and descending loop shift exchange bias in Bi2Fe4O9-BiFeO3 nanocomposites', Journal of Magnetism and Magnetic Materials, 494, 165783 (6pp). doi: 10.1016/j.jmmm.2019.165783en
dc.identifier.doi10.1016/j.jmmm.2019.165783en
dc.identifier.endpage6en
dc.identifier.issn0304-8853
dc.identifier.journaltitleJournal of Magnetism and Magnetic Materialsen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/12233
dc.identifier.volume494en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.projectinfo:eu-repo/grantAgreement/EC/H2020::RIA/654384/EU/Access to European Nanoelectronics Network/ASCENTen
dc.rights© 2019 Elsevier B.V. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 licenseen
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectExchange biasen
dc.subjectMultiferroicsen
dc.subjectSpin glasen
dc.subjectNanocompositesen
dc.titleAsymmetric ascending and descending loop shift exchange bias in Bi2Fe4O9-BiFeO3 nanocompositesen
dc.typeArticle (peer-reviewed)en
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
10961.pdf
Size:
1.11 MB
Format:
Adobe Portable Document Format
Description:
Accepted Version
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
2.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Tyndall National Institute - Journal Articles