Daniel J. Coady, Amanda C. Engler, et al.
ACS Macro Letters
The electromechanical constants and polarisation moments of KTaO 3 have been determined for samples of varying size. The polarisation moments exhibit a large size dependence, and this effect is interpreted in terms of space charge, which is formed by ionisation of traps. Space-charge fields are shown to arise spontaneously and are also induced by external fields. Large external fields have been observed to alter the electro-mechanical response irreversibly. This observation is explained in terms of electron tunnelling between shallow traps and rectification of the metal-dielectric Schottky barrier.
Daniel J. Coady, Amanda C. Engler, et al.
ACS Macro Letters
Mitsuru Ueda, Hideharu Mori, et al.
Journal of Polymer Science Part A: Polymer Chemistry
J.R. Thompson, Yang Ren Sun, et al.
Physica A: Statistical Mechanics and its Applications
A. Nagarajan, S. Mukherjee, et al.
Journal of Applied Mechanics, Transactions ASME