Observation of acoustical memory in LiNbO3.
A new physical effect is reported. In single crystals of lithium niobate (LiNbO3), we have observed an acoustical memory effect. An acoustical tone burst is stored inside the crystal and reemitted at a later time. This memory signal is related to the acousto-electrical properties of the ferroelectric medium. Futhermore, it is shown to be sensitive to both temperature and frequency.
McPherson
Michael S
MS
Department of Physics and Astronomy, University of Mississippi, National Center for Physical Acoustics, Coliseum Drive, University, Mississippi 38677, USA.
Ostrovskii
Igor
I
Breazeale
M A
MA