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

(2) Institute of Applied Physics; (3) National Laboratory of Solid State Microstructures; Department of Materials Science; Engineering; Eric Yue Ma (1); Jian Zhou (3); Lukas M. Eng (2); Minghui Lu (3); Nanjing University); Scott R. Johnston (1)

arxiv: 1705.00711 · v1 · pith:QDLFS5UQnew · submitted 2017-05-01 · ❄️ cond-mat.mtrl-sci

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

Scott R. Johnston (1) , Yongliang Yang (1) , Yong-Tao Cui (1) , Eric Yue Ma (1) , Thomas K\"ampfe (2) , Lukas M. Eng (2) , Jian Zhou (3) , Yan-Feng Chen (3)

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Minghui Lu (3) Zhi-Xun Shen (1) ((1) Department of Applied Physics Stanford University (2) Institute of Applied Physics TU Dresden (3) National Laboratory of Solid State Microstructures Department of Materials Science Engineering Nanjing University)

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classification ❄️ cond-mat.mtrl-sci

keywords acousticmeasurementmicrowaveferroelectricmicroscopyresonancessurfacewave

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

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