Measurement of surface acoustic wave resonances in ferroelectric domains by microwave microscopy Article Swipe

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Microwave Surface acoustic wave Mesoscopic physics Acoustic microscopy Materials science Ferroelectricity Acoustic impedance Acoustic wave Physical acoustics Optics Electrical impedance Microscopy Acoustics Condensed matter physics Optoelectronics Physics Dielectric Ultrasonic sensor Quantum mechanics

Scott R. Johnston , Yongliang Yang , Yong‐Tao Cui , Yue Ma , Thomas Kämpfe , Lukas M. Eng , Jian Zhou , Yanfeng Chen , Ming‐Hui Lu , Zhi‐Xun Shen ·

YOU? · · 2017 · Open Access · · DOI: https://doi.org/10.1063/1.4997474 · OA: W2585418330

Surface Acoustic Wave (SAW) resonances were imaged within a closed domain in the ferroelectric LiTaO3 via scanning Microwave Impedance Microscopy (MIM). The MIM probe is used for both SAW generation and measurement, allowing the 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.