Large signal electromechanical properties of low loss (1-x) Pb (Mg1/3 Nb2/3) O3 -x PbTiO3 single crystals

Nevin P. Sherlock, Shujun Zhang, Jun Luo, Ho Yong Lee, Thomas R. Shrout, Richard J. Meyer

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

The use of single crystals based on the solid solution (1-x) Pb (Mg1/3 Nb2/3) O3 -x PbTiO3 (PMNT) has been demonstrated in many piezoelectric devices, but the low mechanical quality factor has limited its use in high power projector applications. In this work, 33-mode properties of PMNT single crystals with various modifications were evaluated to see if self-heating may be reduced by decreasing the mechanical and electrical losses within the active material. Three modifications were evaluated: incorporating ternary components, adding acceptor dopants, or orienting the crystal along different crystallographic directions. The electromechanical properties of these modified crystals were evaluated under increasing levels of dynamic strain. The results suggest that modified single crystal PMNT may improve the source level from a projector while reducing thermal effects from self-heating, making them appropriate for high power applications.

Original languageEnglish (US)
Article number074108
JournalJournal of Applied Physics
Volume107
Issue number7
DOIs
StatePublished - Apr 1 2010

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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