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arXiv · 1705.00711

Measurement of Surface Acoustic Wave Resonances in Ferroelectric Domains by Microwave Microscopy

Scott R. Johnston·Yongliang Yang·Yong-Tao Cui·Eric Yue Ma·Thomas Kämpfe·Lukas M. Eng·Jian Zhou·Yan-Feng Chen·Minghui Lu·Zhi-Xun Shen
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Abstract

Surface Acoustic Wave (SAW) resonances were imaged within a closed domain in the ferroelectric LiTaO$_3$ via scanning Microwave Impedance Microscopy (MIM). The MIM probe is used for both SAW generation and measurement, allowing contact-less measurement within a mesoscopic structure. Measurements taken over a range of microwave frequencies are consistent with a constant acoustic velocity, demonstrating the acoustic nature of the measurement.

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Scott R. Johnston, Yongliang Yang, Yong-Tao Cui, Eric Yue Ma, Thomas Kämpfe, Lukas M. Eng, Jian Zhou, Yan-Feng Chen, Minghui Lu, Zhi-Xun Shen. 2017-05-01. Measurement of Surface Acoustic Wave Resonances in Ferroelectric Domains by Microwave Microscopy. https://doi.org/10.1063/1.4997474

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