Determination of the piezoelectric constants of LGN, LGS, and LGT

Author

Smythe, Robert C. ; Hague, G. Eric

Author_Institution

Piezo Technol. Inc., Orlando, FL, USA

fYear

2000

fDate

2000

Firstpage

191

Lastpage

194

Abstract

The piezoelectric constants of LGN (langanite, La₃Ga _5.5Nb_0.5O₁₄), LGS (langasite, La₃Ga₅SiO₁₄) and LGT (langatate, La₃Ga_5.5Ta_0.5O₁₄) have been determined over a temperature range of -55°C to +125°C from measurements of the equivalent circuit parameters of suitably oriented plano-convex resonators. Apart from the piezoelectric temperature coefficients for LGT, which appear to be the first reported, the new values are compared with values previously reported

Keywords

crystal resonators; gallium compounds; lanthanum compounds; piezoelectric materials; vibrations; -55 to 125 C; 3D model; La₃Ga_5.5Nb_0.5O₁₄; La₃Ga_5.5Ta_0.5O₁₄; La₃Ga₅SiO₁₄; equivalent circuit parameters; langanite; langasite; langatate; motional capacitance; oriented plano-convex resonators; piezoelectric constants; piezoelectric temperature coefficient; sensitivity analysis; Capacitance measurement; Crystalline materials; Equations; Equivalent circuits; Frequency measurement; Harmonic analysis; Laboratories; Photonic crystals; Piezoelectric materials; Temperature distribution;

fLanguage

English

Publisher

ieee

Conference_Titel

Frequency Control Symposium and Exhibition, 2000. Proceedings of the 2000 IEEE/EIA International

Conference_Location

Kansas City, MO

ISSN

1075-6787

Print_ISBN

0-7803-5838-4

Type

conf

DOI

10.1109/FREQ.2000.887352

Filename

887352