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- Title
Electrostrictive mechanism of microwave losses in a planar strontium titanate film capacitor.
- Authors
Vendik, O. G.; Ter-Martirosyan, L. T.
- Abstract
An analysis is made of the dielectric losses in the microwave range in a planar ferroelectric capacitor caused by electrostrictively excited sound in the ferroelectric in the presence of a bias field (induced piezoeffect). An approximate expression is obtained for the dielectric loss tangent as a function of the bias field and the frequency. Numerical estimates are made for single-crystal strontium titanate at 78 K. This loss mechanism may be a determining factor for the fabrication of planar capacitors using high-quality ferroelectric films having properties close to those of the single crystal. © 1999 American Institute of Physics.
- Subjects
CAPACITORS; DIELECTRIC loss; FERROELECTRIC devices
- Publication
Technical Physics, 1999, Vol 44, Issue 8, p954
- ISSN
1063-7842
- Publication type
Article
- DOI
10.1134/1.1259412