Large magnetoelectric coupling in nanoscale BiFeO3 from direct electrical measurements

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dc.contributor.author Goswami, Sudipta
dc.contributor.author Bhattacharya, Dipten
dc.contributor.author Keeney, Lynette
dc.contributor.author Maity, Tuhin
dc.contributor.author Kaushik, S. D.
dc.contributor.author Siruguri, V.
dc.contributor.author Das, Gopes C.
dc.contributor.author Yang, Haifang
dc.contributor.author Li, Wuxia
dc.contributor.author Gu, Chang-zhi
dc.contributor.author Pemble, Martyn E.
dc.contributor.author Roy, Saibal
dc.date.accessioned 2016-07-22T13:54:26Z
dc.date.available 2016-07-22T13:54:26Z
dc.date.issued 2014-09-02
dc.identifier.citation Goswami, S., Bhattacharya, D., Keeney, L., Maity, T., Kaushik, S. D., Siruguri, V., Gopes D. C., Yang, H., Li, W., Gu, C., Pemble, M. E., Roy, S. (2014) 'Large magnetoelectric coupling in nanoscale BiFeO3 from direct electrical measurements', Physical Review B, 90, 104402. http://link.aps.org/doi/10.1103/PhysRevB.90.104402 en
dc.identifier.volume 90 en
dc.identifier.startpage 104402 (1) en
dc.identifier.endpage 104402 (7) en
dc.identifier.issn 2469-9950
dc.identifier.issn 2469-9969
dc.identifier.uri http://hdl.handle.net/10468/2929
dc.identifier.doi 10.1103/PhysRevB.90.104402
dc.description.abstract We report the results of direct measurement of remanent hysteresis loops on nanochains of BiFeO3 at room temperature under zero and ∼20 kOe magnetic field. We noticed a suppression of remanent polarization by nearly ∼40% under the magnetic field. The powder neutron diffraction data reveal significant ion displacements under a magnetic field which seems to be the origin of the suppression of polarization. The isolated nanoparticles, comprising the chains, exhibit evolution of ferroelectric domains under dc electric field and complete 180 switching in switching-spectroscopy piezoresponse force microscopy. They also exhibit stronger ferromagnetism with nearly an order of magnitude higher saturation magnetization than that of the bulk sample. These results show that the nanoscale BiFeO3 exhibits coexistence of ferroelectric and ferromagnetic order and a strong magnetoelectric multiferroic coupling at room temperature comparable to what some of the type-II multiferroics show at a very low temperature. en
dc.description.sponsorship Science Foundation Ireland (SFI Principal Investigator (PI) Project No. 11/PI/1201, SFI FORME Strategic Research Cluster Award No. 07/SRC/I1172, ISCA grant (SFI: 12/ISCA/2493)); Indo-Ireland joint program (DST/INT/IRE/P-15/11); Council of Scientific and Industrial Research, India (CSIR Research Associateship) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher American Physical Society en
dc.relation.uri http://journals.aps.org/prb/pdf/10.1103/PhysRevB.90.104402
dc.rights © 2014 American Physical Society. en
dc.subject Capacitors en
dc.subject Films en
dc.subject Nanochains en
dc.subject ferromagnetism en
dc.subject Multiferroic coupling en
dc.title Large magnetoelectric coupling in nanoscale BiFeO3 from direct electrical measurements en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Lynette Keeney, Tyndall Photonics, University College Cork, Cork, Ireland. +353-21-490-3000 Email: lynette.keeney@tyndall.ie en
dc.internal.availability Full text available en
dc.date.updated 2014-09-03T10:22:19Z
dc.description.version Published Version en
dc.internal.rssid 269569627
dc.contributor.funder Science Foundation Ireland en
dc.contributor.funder Council of Scientific and Industrial Research, India en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Physical Review B en
dc.internal.copyrightchecked No. !!CORA!! Yes en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress lynette.keeney@tyndall.ie en
dc.identifier.articleid 104402


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