Abstract
The effects of the composition on the SAW velocity and the electro-mechanical coupling constant (k2) of 128°-rotated Y-cut X-propagating (128°Y–X) LiNbO3 wafers have been quantitatively investigated. The composition of the wafer was determined from the Curie temperature detected by DTA measurements and the SAW velocity from the measurements on a 70 MHz band SAW Comb filter. From the experiments, both the SAW velocity and the k2 obviously depended on the composition of the wafer. Variations of the SAW velocity and the k2 per 1 Li2O mol% were 43.4 m/sec and 0.43%. At the composition of 48.6 Li2O mol% which was reported as the congruent melt composition by Carruthers et al.,1) the SAW velocity and the k2 were 3986 m/sec and 5.8%, respectively.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
