Piezoelectric cross-talk investigation of LGT and CTGS single crystlals

Fa Peng Yu, Shuai Hou, Shujun Zhang, Ting Feng Ma, Xian Zhao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Among langasite type crystals, La3Ga5.5Ta 0.5O14 (LGT) and Ca3TaGa3Si 2O14 (CTGS) possess relatively high resistivity (>106μcm@600°C) and high effective piezoelectric coefficient (6-8 pC/N) at elevated temperatures, exhibited the potential use for high temperature sensing. In this work, the maximum piezoelectric coefficients and piezoelectric cross-talk behaviors for LGT and CTGS crystals are investigated, where the maximum piezoelectric d11, d14 and d26 for LGT crystals are obtained to be on the order of 7.2, 9.7 and 14.7 pC/N, respectively, while for CTGS crystals, the maximum d11, d14 and d26 are found to be 4.6, 12.2, and 11.4 pC/N, respectively. Of particular significance is that the optimum crystal cuts free of cross-talk were obtained from LGT and CTGS crystals, with effective piezoelectric coefficients being on the order of 14-15 pC/N and 8-11 pC/N, respectively, attractive for high temperature piezoelectric applications.

Original languageEnglish (US)
Title of host publicationProceedings of the 2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013
PublisherIEEE Computer Society
ISBN (Print)9781479932894
DOIs
StatePublished - 2013
Event2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013 - Changsha, China
Duration: Oct 25 2013Oct 27 2013

Publication series

NameProceedings of the 2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013

Other

Other2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013
CountryChina
CityChangsha
Period10/25/1310/27/13

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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    Yu, F. P., Hou, S., Zhang, S., Ma, T. F., & Zhao, X. (2013). Piezoelectric cross-talk investigation of LGT and CTGS single crystlals. In Proceedings of the 2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013 [6841085] (Proceedings of the 2013 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2013). IEEE Computer Society. https://doi.org/10.1109/SPAWDA.2013.6841085