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

R.C. Smythe; G.E. Hague

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Article . 2002 . Peer-reviewed

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

descriptionPublicationkeyboard_double_arrow_right Article 08 Nov 2002Publisher:IEEEJournal:Proceedings of the 2000 IEEE/EIA International Frequency Control Symposium and Exhibition (Cat. No.00CH37052)

Authors: R.C. Smythe; G.E. Hague;

doi: 10.1109/freq.2000.887352

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

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Abstract

The piezoelectric constants of LGN (langanite, La/sub 3/Ga/sub 5.5/Nb/sub 0.5/O/sub 14/), LGS (langasite, La/sub 3/Ga/sub 5/SiO/sub 14/) and LGT (langatate, La/sub 3/Ga/sub 5.5/Ta/sub 0.5/O/sub 14/) have been determined over a temperature range of -55/spl deg/C to +125/spl deg/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.

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