Origin of Piezoelectricity on Langasite
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چکیده
منابع مشابه
Acoustic wave measurements on SNGS crystals and determination of material constants
Single crystals of compounds of calcium gallium germanate (CGG) structure with the general formula A3BC3D2O14, have been discussed as promising new materials for acoustic device applications. Since the CGG (or langasite) family belongs to the same acentric crystal class 32 as quartz similar acoustic properties can be expected. In particular, temperature compensated crystal cuts were predicted w...
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Langasite surface acoustic wave devices can be used to implement harsh-environment wireless sensing of gas concentration and temperature. This paper reviews prior work on the development of langasite surface acoustic wave devices, followed by a report of recent progress toward the implementation of oxygen gas sensors. Resistive metal oxide films can be used as the oxygen sensing film, although ...
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This paper presents a new acoustic-resonance microscopy, electromagneticresonanceultrasound microscopy (ERUM), to evaluate the localized elastic constant of a solid material. It is based on the resonance-frequency shift of a vibrating oriented langasite (La3Ga5SiO14) crystal contacting the specimen via a sphere tip. The vibration of langasite is excited and detected by a dynamic electric field ...
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تاریخ انتشار 2017