Piezoelectric Studies of Acoustic Softening in KH2PO4 Crystal
- 1 January 1985
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 24 (S2)
- https://doi.org/10.7567/jjaps.24s2.704
Abstract
Long wavelength limit of acoustic x y -shear mode in KDP crystal was studied by use of piezoelectric excitation. This piezoelectric limit of the acoustic soft-mode, the piezoacoustic oscillator, was analyzed in terms of a damped harmonic oscillator model. Possible contributions from this piezoacoustic mode to both the central peak intensity and the dielectric anomaly of ε'(T≃T c)≃104 ε'(T≫T c) were discussed in terms of the piezoacoustic mode parameters.Keywords
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