NDLI: CTGS material parameters obtained by versatile SAW measurements

Content Provider	IEEE Xplore Digital Library
Author	Biryukov, S.V. Schmidt, H. Sotnikov, A. Weihnacht, M. Sakharov, S. Buzanov, O.
Copyright Year	2014
Description	Author affiliation: IFW Dresden, Dresden, Germany (Biryukov, S.V.; Schmidt, H.; Sotnikov, A.; Weihnacht, M.) \|\| JSC Fomos-Mater., Moscow, Russia (Sakharov, S.; Buzanov, O.)
Abstract	Recently big size high quality piezoelectric single crystals of $Ca_{3}TaGa_{3}Si_{2}O_{14}$ (CTGS) have been grown. This temperature durable crystal is very promising for future application in different devices based on surface acoustic waves (SAW) due to its high electromechanical coupling compared to quartz. In contrast to the popular langasite, CTGS is a more ordered compound and therefore stands for better characteristics at both, high temperatures and high frequencies. During the last decade several sets of material constants for CTGS were published extracted from bulk acoustic wave measurements on small samples, but these results are strongly different from each other. Moreover, all published constant sets lead to unacceptable numerical differences for calculated SAW velocities when compared to recent measurements of SAW velocities on large CTGS wafers. In this work we present a new set of room temperature CTGS material constants, extracted by combination of high-precision SAW phase velocity measurements with proprietary numerical procedures developed in-house.
Starting Page	882
Ending Page	885
File Size	944946
Page Count	4
File Format	PDF
e-ISBN	9781479970490
DOI	10.1109/ULTSYM.2014.0217
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Surface acoustic waves Crystals Velocity measurement Temperature measurement Acoustic measurements CTGS material parameters surface acoustic waves SAW velocity measurements
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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