Enhanced piezoelectric activity and temperature stability of [1 1 1]-oriented orthorhombic 0.68Pb(Mg1/3Nb2/3)O 3-0.32PbTiO3 single crystals by domain size engineering

Zong Yang Shen, Yanxue Tang, Shujun Zhang, Jun Luo, Yueming Li, Thomas R. Shrout

Research output: Contribution to journalArticle

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Abstract

The dielectric and piezoelectric properties of [1 1 1]-oriented orthorhombic Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT) single crystals (3O multi-domain state) with various domain sizes were investigated by poling control. The free dielectric permittivity (ε33T/ε0) and longitudinal piezoelectric coefficient (d33) were 6400 and 900 pC N-1, respectively, for samples with domain sizes of ∼2 μm, nearly twice that of ∼20 μm. Together with good temperature stability (Δd33/d33(25C) <8%) up to the orthorhombic-tetragonal phase transition temperature, the "3O" PMN-PT crystals with fine domain structures are promising candidate for sensors and transducers.

Original languageEnglish (US)
Pages (from-to)17-20
Number of pages4
JournalScripta Materialia
Volume72-73
DOIs
StatePublished - Feb 1 2014

All Science Journal Classification (ASJC) codes

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

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