Field-induced phase transition and its impact on the magnetoelectric effect in P(VDF-HFP)/Metglas laminates

S. G. Lu, X. Zhou, Z. Fang, Q. M. Zhang

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    The field-induced phase transition driven by electric field was observed in poly(vinylidene fluoride - hexafluoropropylene) (P(VDF-HFP)) 90/10 wt% copolymers. Experimental results indicated that the electric field may remarkably affect the remanent polarization in terms of changing the D-E loop forms from double loops to single loop, starting from 68 MV/m, and completing at 216 MV/m. It was found that the remanent polarization as well as the piezoelectric constant d31 had a linear relationship with the poling electric field in above electric field range. Thus the magnetoelectric (ME) coupling coefficient αME in P(VDF-HFP)/Metglas laminates increased with the poling electric field. Moreover, the cyclic poled ME device demonstrated different peak d.c. magnetic bias field HDC on the αME - HDC curves from conventional room temperature poled ones. The peak ME coefficient obtained was ∼4 V/cm·Oe.

    Original languageEnglish (US)
    Title of host publicationMultiferroic and Ferroelectric Materials
    Pages32-37
    Number of pages6
    StatePublished - Dec 1 2010
    Event2009 MRS Fall Meeting - Boston, MA, United States
    Duration: Nov 30 2009Dec 4 2009

    Publication series

    NameMaterials Research Society Symposium Proceedings
    Volume1199
    ISSN (Print)0272-9172

    Other

    Other2009 MRS Fall Meeting
    CountryUnited States
    CityBoston, MA
    Period11/30/0912/4/09

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

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  • Cite this

    Lu, S. G., Zhou, X., Fang, Z., & Zhang, Q. M. (2010). Field-induced phase transition and its impact on the magnetoelectric effect in P(VDF-HFP)/Metglas laminates. In Multiferroic and Ferroelectric Materials (pp. 32-37). (Materials Research Society Symposium Proceedings; Vol. 1199).