钽酸锂晶体相变的声学研究

2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF) Pub Date : 2020-07-01 DOI:10.1109/IFCS-ISAF41089.2020.9234919

Akhmedzhanov Farkhad, Kurbanov Jakhongir, Nazarov Jamoliddin

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引用次数: 0

摘要

本文研究了50 ~ 450 MHz频率的声波在钽酸锂晶体中的相变衰减和速度。利用相变的现象学理论，以及压电声波与自由电荷和束缚电荷的相互作用，解释了纵向声波速度和衰减的异常现象。

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Acoustic Studies of Phase Transition in Lithium Tantalate Crystals

The attenuation and velocity of acoustic waves with frequencies of 50–450 MHz in lithium tantalate crystals have been studied in the phase transition region. The detected anomalies in the velocity and attenuation of longitudinal acoustic waves are explained in the framework of the phenomenological theory of phase transitions, as well as the interaction of piezoelectric acoustic waves with free and bound charges.

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来源期刊

2020 Joint Conference of the IEEE International Frequency Control Symposium and International Symposium on Applications of Ferroelectrics (IFCS-ISAF)

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