Journal
APPLIED PHYSICS LETTERS
Volume 77, Issue 9, Pages 1387-1389Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1290268
Keywords
-
Categories
Ask authors/readers for more resources
The elastic nonlinearity of lanthanum-doped lead magnesium niobate-lead titanate electrostrictive ceramic has been investigated by using ultrasonic second-harmonic generation technique and field-induced strain measurement. A large ultrasonic nonlinearity parameter, beta=30, was observed at room temperature, which is more than twice of the values for lead zirconate-lead titanate piezoelectric ceramics. The third-order elastic constant c(111) has been calculated from the beta value. By introducing an effective nonlinearity parameter beta(e) that includes both the intrinsic and the electromechanical coupling generated elastic nonlinearities, the nonlinearity parameter can be accurately characterized. The strong field dependence of the nonlinearity parameter shows excellent potential for designing field tunable nonlinear devices using this material. (C) 2000 American Institute of Physics. [S0003- 6951(00)04335-7].
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available