Temperature dependence of dielectric polarization and strain behaviors for rhombohedral PIMNT single crystal with different crystallographic orientations

Wei Wang, Xiaobing Li, Siu Wing Or, Chung Ming Leung, Jie Jiao, Yaoyao Zhang, Xiangyong Zhao, Haosu Luo

Research output: Journal article publicationJournal articleAcademic researchpeer-review

7 Citations (Scopus)

Abstract

In this study, the dielectric, ferroelectric and strain behaviors of 0.35Pb(In1/2Nb1/2)O3-0.35Pb(Mg1/3Nb2/3)O3-0.30PbTiO3(0.35PIN-0.35PMN-0.30PT or PIMNT35/35/30) single crystal with different crystallographic orientations were investigated as a function of temperature. The Curie temperature TCand rhombohedral to tetragonal phase transition temperature Trtwere risen up to 188 °C and 120 °C, respectively. The coercive field ECand remnant polarization Prfor 〈0 0 1〉 and 〈1 1 0〉 oriented crystals were found to be 5.8 kV/cm, 27.5 μC/cm2and 8.5 kV/cm, 38.7 μC/cm2at room temperature, respectively. The polarization data were obtained from the hysteresis loops of the crystal measured in a wide temperature range. The unipolar strain level was found to be 0.65% at an electric field of 32 kV/cm, with piezoelectric strain coefficient d33∼ 2000 pC/N for 〈0 0 1〉 oriented crystal. Besides, the intermediate metastable state was induced at an electric field of 12.5 kV/cm for 〈1 1 0〉 oriented crystal, which can be utilized in large power transducers such as sonar and actuator.
Original languageEnglish
Pages (from-to)57-62
Number of pages6
JournalJournal of Alloys and Compounds
Volume545
DOIs
Publication statusPublished - 25 Dec 2012

Keywords

  • Dielectric
  • PIMNT
  • PMNT
  • Single crystal
  • Strain behavior

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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