Abstract
In this report, Y-doped lithium niobate (LN) crystal with periodic ferroelectric domain structure (PFDS) was grown by the current-induction technique. The distribution of dopant (Y) along the growth direction was measured by an electron-probe microscopic analyzer. The periodic variation of the dielectric constant in the crystal was revealed by the light diffraction. When a radio-frequency electric field was applied, a 340 MHz ultrasonic wave was excited in the sample by the crossed-field scheme, which implies that the LN with PFDS is suitable for constructing the high-frequency bulk-wave acoustic devices.
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