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A surface acoustic wave on a ferroelectric layer-structure oxide

Authors:	Kohji Toda Tadashi Takenaka Koichiro Sakata

Affiliation:	^a Department of Electrical Engineering, The National Defense Academy, Yokosuka, Japan ^b Department of Electrical Engineering, Science University of Tokyo, Chiba, Japan

Abstract:	As a piezoelectric application of a ferroelectric material of layer-structure type, a surface acoustic wave device using a ceramic Pb_0.15 (NaBi)_0.425Bi₄Ti₄O₁₅, produced by a hot-forging technique is described. The surface acoustic wave on the substrate with the poling axis parallel to the free surface is Blustein-Gulyaev type and its velocity is 2812 m/s.

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