학술논문

Modeling and numerical study of the electroacoustic behavior of lithium niobate under an initial electrical stress
Document Type
Conference
Source
2013 Joint IEEE International Symposium on Applications of Ferroelectric and Workshop on Piezoresponse Force Microscopy (ISAF/PFM) Applications of Ferroelectric and Workshop on the Piezoresponse Force Microscopy (ISAF/PFM), 2013 IEEE International Symposium on the. :30-33 Jul, 2013
Subject
Engineered Materials, Dielectrics and Plasmas
Lead
Tensile stress
piezoelectric material
electrical stress
prestress
electroacoustic behavior
lithium niobate
Language
ISSN
1099-4734
2375-0448
Abstract
Recently, we developed a second order formalism of piezoelectric structures under an external stress. In this work, this formalism is used to numerically study the nonlinearities and evolutions of electroacoustic behavior of lithium niobate under initial electrical stress. By varying the initial prestress, as well as azimuthal and elevation angles, the cut planes in which an electrical prestress induces significant changes on quasi-longitudinal velocity and benefits on coupling coefficient are identified.