Surface acoustic wave properties of La3Ga5SiO14 (LANGASITE) single crystals

被引：38

作者：

Adachi, M ^{[1
]}

Karaki, T ^{[1
]}

Miyamoto, W ^{[1
]}

机构：

[1] Toyama Prefectural Univ, Dept Elect & Informat, Fac Engn, Kosugi, Toyama 9390398, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 1999年 / 38卷 / 5B期

关键词：

langasite; LGS; surface acoustic wave; zero-TCD; piezoelectricity; slow velocity;

D O I：

10.1143/JJAP.38.3283

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Theoretical and experimental results have shown the potential usefulness of La3Ga5SiO14 (LGS) for surface acoustic wave (SAW) applications. The existence of orientations with zero-temperature coefficient of delay (TCD) have been calculated by the computer analysis. A simulation of the temperature-compensated Rayleigh SAWs located around both (0 degrees, 140 degrees, 25 degrees) and (15 degrees, 151 degrees, 40.5 degrees) with the Rayleigh SAW velocity nu of 2762 and 2860 m/s, coupling coefficient k(2) of 0.38 and 0.41%, and power flow angle PFA of 2 and 0 degrees, has been carried out. The Rayleigh SAW velocity nu is lower than those of other SAW materials, which enables miniaturization of SAW design.

引用

页码：3283 / 3287

页数：5

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