Title :
Theoretical investigation of Rayleigh waves on a La3Ga 5SiO14 substrate
Author :
Murota, Masao ; Shimizu, Yasutaka
Author_Institution :
Graduate Sch. of Decision Sci. & Technol., Tokyo Inst. of Technol., Japan
Abstract :
In this paper, theoretical investigation is shown for cuts and propagation directions on La3Ga5SiO14 substrates where a Rayleigh wave does not exist. First, it is shown that a Rayleigh wave does not exist by examining the relationship between a phase velocity and a determinant value. The reasons why a Rayleigh wave does not exist is that the real part of one attenuation constant becomes almost zero. Second, cuts and propagation directions where a Rayleigh wave does not exist are shown as counter maps
Keywords :
Rayleigh waves; acoustic wave absorption; gallium compounds; lanthanum compounds; piezoelectric materials; surface acoustic waves; La3Ga5SiO14; La3Ga5SiO14 substrate; Rayleigh waves; attenuation constant; counter maps; cut direction; phase velocity; propagation direction; surface acoustic waves; Acoustic devices; Attenuation; Counting circuits; Delay lines; Oscillators; Piezoelectric materials; Resonator filters; Surface acoustic wave devices; Surface acoustic waves; Temperature;
Conference_Titel :
Ultrasonics Symposium, 1998. Proceedings., 1998 IEEE
Conference_Location :
Sendai
Print_ISBN :
0-7803-4095-7
DOI :
10.1109/ULTSYM.1998.762148
