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	Lateral-field-excitation properties of LiNbO/sub 3/ single crystal
	Wang Wen-Yan ; Zhang Chao ; Zhang Zhi-Tian ; Liu Yan ; Feng Guan-Ping
	2010-10-12 ; 2010-10-12
关键词	Practical Experimental/ acoustic wave propagation lithium compounds piezoelectric devices piezoelectric materials/ lateral-field-excitation properties LFE piezoelectric coupling acoustic wave propagation lateral electric field Christoffel-Bechmann method acoustic wave phase velocity high performance resonator sensor applications LFE device LiNbO/sub 3// A7760 Piezoelectricity and electrostriction A6265 Acoustic properties of solids B2810F Piezoelectric and ferroelectric materials B2860A Piezoelectric devices/ LiNbO3/ss NbO3/ss O3/ss Li/ss Nb/ss O/ss
中文摘要	LiNbO/sub 3/ has been found attractive for lateral field excitation (LFE) applications due to its high piezoelectric coupling. In this paper, bulk acoustic wave propagation properties for LiNbO/sub 3/ single crystal excited by a lateral electric field have been investigated using the extended Christoffel-Bechmann method. It is found that the LFE piezoelectric coupling factor for c mode reaches its maximum value of 95.46% when Psi = 0 degrees for both (yxl)-58 degrees and (yxwl)+/-60 degrees /58 degrees LiNbO/sub 3/. The acoustic wave phase velocity of c mode TSM (thickness shear mode) changes from 3456 m/s to 3983 m/s as a function of Psi . Here Psi represents the angle between the lateral electric field and the crystallographic X-axis in the substrate major surface. A 5 MHz LFE device of (yxl)-58 degrees LiNbO/sub 3/ with Psi = 0 degrees was designed and tested in air. A major resonance peak was observed with the motional resistance as low as 17 Omega and the Q-factor value up to 10353. The test result is well in agreement with the theoretical analysis, and suggests that the LFE LiNbO/sub 3/ device can be a good platform for high performance resonator or sensor applications.
语种	英语
出版者	IOP Publishing Ltd. ; UK
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/80276]
专题	清华大学
推荐引用方式 GB/T 7714	Wang Wen-Yan,Zhang Chao,Zhang Zhi-Tian,et al. Lateral-field-excitation properties of LiNbO/sub 3/ single crystal[J],2010, 2010.
APA	Wang Wen-Yan,Zhang Chao,Zhang Zhi-Tian,Liu Yan,&Feng Guan-Ping.(2010).Lateral-field-excitation properties of LiNbO/sub 3/ single crystal..
MLA	Wang Wen-Yan,et al."Lateral-field-excitation properties of LiNbO/sub 3/ single crystal".(2010).

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