Crystal orientation dependence of piezoelectric properties of single crystal barium titanate

Xiao Hong Du, Qing Ming Wang, Uma Belegundu, Amar Bhalla, Kenji Uchino

Research output: Contribution to journalArticlepeer-review

42 Scopus citations

Abstract

The dielectric and piezoelectric constants of single crystal barium titanate have been theoretically calculated and experimentally measured for different cutting orientation directions. The dielectric constant rapidly increases as the cutting direction deviates away from the unique spontaneous polarization direction [001]. The effective piezoelectric strain constant d33 exhibits the same trend in the range from 0° to 50° away from the polarization direction and has the maximum value more than 3.5 times larger than its value along the polarization direction. The electromechanical coupling factor k33 is also enhanced by choosing a cutting direction canted away from the polarization direction.

Original languageEnglish (US)
Pages (from-to)109-113
Number of pages5
JournalMaterials Letters
Volume40
Issue number3
DOIs
StatePublished - Aug 1999

All Science Journal Classification (ASJC) codes

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

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