Title :
Elastic, piezoelectric, dielectric properties of La3Ga 5.5Ta0.5O14 single crystals
Author :
Pisarevsky, Yu.V. ; Senyushenkov, P.A. ; Mill, B.V. ; Moiseeva, N.A.
Author_Institution :
Inst. of Crystallogr., Acad. of Sci., Moscow, Russia
Abstract :
La3Ga5.5Ta0.5O14 (LGT) crystals could be useful for frequency control applications because the combination of electromechanical coupling constant and thermal stability is very promising. Y-cut directly have zero value of first order temperature coefficient. Second order temperature coefficient is near of La3Ga3SiO14 (LGS) figure. The present paper is devoted to measurements of elastic, piezoelectric and dielectric properties of LGT at room temperature and temperature dependencies of some sound mode velocities
Keywords :
lanthanum compounds; piezoelectric materials; piezoelectricity; 20 C; La3Ga3SiO14; La3Ga3SiO14 figure; La3Ga5.5Ta0.5O14; La3Ga5.5Ta0.5O14 crystals; Y-cut; dielectric properties; elastic properties; electromechanical coupling constant; first order temperature coefficient; frequency control; piezoelectric properties; room temperature; second order temperature coefficient; sound mode velocities; temperature dependencies; thermal stability; Crystallography; Crystals; Dielectric measurements; Gallium; Length measurement; Resonance; Surface acoustic waves; Temperature dependence; Temperature measurement; Velocity measurement;
Conference_Titel :
Frequency Control Symposium, 1998. Proceedings of the 1998 IEEE International
Conference_Location :
Pasadena, CA
Print_ISBN :
0-7803-4373-5
DOI :
10.1109/FREQ.1998.717982