Increased operating temperature range in La-modified Pb(Mg1/3Nb2/3)O3-PbTiO3 relaxor ferroelectric-based transducers

J. T. Fielding, Thomas R. Shrout, S. J. Jang

Research output: Contribution to conferencePaperpeer-review


The large E- field induced strains and electromechanical coupling in PMN-based relaxors have been utilized in actuator and transducer applications. The effect of La3+ modifications on the field-dependent dielectric and piezoelectric properties was investigated for several (1-x)PMN-(x)PT compositions with transition regions near room temperature. The effect of La3+ modifications, increasing the width of the micro-macro polar transition range (ΔT), defined as the difference between the temperature of maximum permittivity (Tmax) and the depolarization temperature(Td), results in a broader temperature range for obtaining large induced electromechanical coupling factors with negligible hysteresis.

Original languageEnglish (US)
Number of pages4
StatePublished - Dec 1 1994
EventProceedings of the 1994 9th IEEE International Symposium on Applications of Ferroelectrics - University Park, PA, USA
Duration: Aug 7 1994Aug 10 1994


OtherProceedings of the 1994 9th IEEE International Symposium on Applications of Ferroelectrics
CityUniversity Park, PA, USA

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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