Anomalous Temperature Behavior of the Elastic Constant C11 in LiTaO3
1981 年 50 巻 6 号 p. 1809-1810
詳細
1981 年 50 巻 6 号 p. 1809-1810
The elastic constants C11 of both single domain and multidomain LiTaO3 crystals were measured between 20 and 700°C by the ultrasonic phase comparison method. In the ferroelectric phase C11E had an anomalous weak temperature dependence, while in the paraelectric phase C11E decreased linearly with increasing temperature. The elastic constant C11 of the multidomain crystal was larger than C11E of the single domain crystal below TC.
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