详细推导计算了声体波(BAW)在La3Ga5SiO14(LGS)晶体中分别沿YZ、XY、XZ面传播的纯切变波,准切变波,准纵波的表达式.绘制了LGS晶体在(100)、(010)、(001)这三个主晶面内声的慢度分布曲线图.计算了声速的最大值并与石英进行比较,结果表明LGS晶体的BAW传播速度一般比石英低1000m/s左右.为该晶体在声体波器件等方面的设计和应用提供了一定的理论指导作用.
参考文献
| [1] | KAMINSKY A A;Mill B V;Khodzhabagyan G G .Investigation of Trigonal( La1-x Ndx )3 Ga5 SiO14 Crystals I. Growth and Optical Properties[J].Physica Status Solidi A,1983,80:387. |
| [2] | Bohm J.;Flannery C.;Frohlich HJ.;Hauke T.;Heimann RB. Hengst M.;Straube U.;Chilla E. .Czochralski growth and characterization of piezoelectric single crystals with langasite structure: La3Ga5SiO14 (LGS), La3Ga5.5Nb0.5O14 (LCN) and La3Ga5.5Ta0.5O14 (LGT) II. Piezoelectric and elastic properties[J].Journal of Crystal Growth,2000(1/4):293-298. |
| [3] | KAMINSKY A A;Shnestrova I M;Sarkisov S E .Investigation of Trigonal ( La1-x Ndx )3Ga5SiO14 Crystals Ⅱ. Spectral Laser and Electromechanical Properties[J].Physica Status Solidi A,1983,80:607. |
| [4] | Stade J.;Bohaty L.;Hengst M.;Heimann RB. .Electro-optic, piezoelectric and dielectric properties of langasite (La3Ga5SiO14), langanite (La3Ga5.5Nb0.5O14) and langataite (La3Ga5.5Ta0.5O14)[J].Crystal Research and Technology: Journal of Experimental and Industrial Crystallography,2002(10):1113-1120. |
| [5] | Wang Jiyang;Yin Xin;Han Rongjiang et al.Growth,Properties and Electrooptical Applications of Single Crystals La3Ga5SiO14[J].Optical Materials,2003,23:393. |
| [6] | 武安华,徐家跃.La3Ga5SiO14单晶的生长、性能及SAW应用[J].人工晶体学报,2002(06):559-564. |
| [7] | 徐介平.声光器件的原理设计和应用[M].北京:科学出版社,1982:18. |
| [8] | 李正法,张沛霖,赵明磊,王春雷,钟维烈,王增梅,袁多荣.La3Ga5SiO14晶体的介电性质、弹性与压电性质[J].物理学报,2003(03):726-728. |
| [9] | 王越,孙云旭,蒋毅坚,杨赤.GaPO4晶体弹性与压电性能的研究[J].人工晶体学报,2001(02):178-184. |
| [10] | 奥尔特B A.固体中的声场和波[M].北京:科学出版社,1982:383. |
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