La3Ga5SiO14和La3Ga5.5Ta0.5O14的弹性和压电特性：共振超声光谱的应用
Elastic and piezoelectric properties of La3Ga5SiO14 and La3Ga5.5Ta0.5O14: an application of resonant ultrasound spectroscopy.
作者信息
Schreuer Jürgen
机构信息
Laboratory of Crystallography, Swiss Federal Institute of Technology (ETH), CH-8092 Zürich, Switzerland.
出版信息
IEEE Trans Ultrason Ferroelectr Freq Control. 2002 Nov;49(11):1474-9. doi: 10.1109/tuffc.2002.1049728.
The electromechanical properties of La3Ga5SiO14 (LGS) and La3Ga5.5Ta0.5O14 (LGT) have been studied at room temperature on 25 samples using resonant ultrasound spectroscopy (RUS). The RUS method facilitates simultaneous determination of all independent elastic and piezoelectric constants of a sample within the same frequency range and yields sample parameters with high internal consistency. Consequently, the spread of the experimental results presented here is significantly lower than the scatter of literature data obtained by different experimental techniques.
利用共振超声光谱法（RUS）在室温下对25个样品研究了硅酸镧镓（LGS）和钽酸镧镓（LGT）的机电性能。RUS方法有助于在同一频率范围内同时测定样品的所有独立弹性常数和压电常数，并得到具有高度内部一致性的样品参数。因此，这里给出的实验结果的离散度明显低于通过不同实验技术获得的文献数据的离散度。
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