Tunable dielectric and piezoelectric characteristics of lead magnesium niobate titanate relaxor thin films

J. Chen, Q. Zhang, L. E. Cross

    Research output: Contribution to journalConference articlepeer-review

    6 Scopus citations

    Abstract

    Ferroelectric relaxor thin films Pb(Mg1/3Nb2/3Ti0.1)O3 (90PMN10PT) have been fabricated by the sol-gel technique. The dielectric, piezoelectric and electrostrictive characteristics have been investigated. Experimental results show that the dielectric permittivity and effective piezoelectric coefficients of the films can be tuned by varying dc bias fields which offers the useful features in designing smart micro transducer and actuator systems. Dielectric constants of the films are in the range of 5000 to 6000. The electric field strain is on the order of 10-3, and the maximum effective d33 coefficient of 90PMN10PT films is as large ad 265 pC/N at 31 kV/cm. The electrostrictive coefficients Q11 is on the order of 1.2 × 10-2 m4/C2 and M11 is 3.5 × 10-16m2/V2.

    Original languageEnglish (US)
    Pages (from-to)47-52
    Number of pages6
    JournalMaterials Research Society Symposium - Proceedings
    Volume310
    DOIs
    StatePublished - Jan 1 1993
    EventProceedings of the 1993 Spring Meeting of the Materials Research Society - San Francisco, CA, USA
    Duration: Apr 16 1993Apr 20 1993

    All Science Journal Classification (ASJC) codes

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

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