Ferroelectric Properties of Tri-glycine Sulphate Thin Films
- 1 January 1973
- journal article
- Published by American Vacuum Society in Journal of Vacuum Science and Technology
- Vol. 10 (1) , 231-234
- https://doi.org/10.1116/1.1317949
Abstract
Thin film of TGS between 1300 Å and 1.6 μ have been deposited by a spinning technique on A1Mg discs at low temperatures. The crystalline texture is radially spherulitic with the c-axes being confined in the plane of the substrate. The ferroelectric hysteresis curves show a maximum saturation polarization Ps of 2μC/cm2 at 60 Hz and a coercive voltage of 1.8 V. The Curie temperature of the films with metal electrodes was 51±1 °C and the small signal relative dielectric constant was 35. The S-curves show that a 10-V pulse of 10 μsec duration can switch 100% of the 60-Hz polarization. The retention was measured for times up to one second, and appeared to be relatively constant at that time interval and beyond. The built-in bias associated with the work function of the top electrode was observed by C-V measurements.Keywords
This publication has 0 references indexed in Scilit: