Title :
Switching transients in an ultrathin ferroelectric copolymer film
Author :
Arafin, Pepen ; Guy, Ian
Author_Institution :
Dept. of Phys., Macquarie Univ., North Ryde, NSW, Australia
Abstract :
The switching characteristics of P(VDF-TrFE) copolymer films, with a thickness of 50 nm, have been measured at room temperature. The spontaneous polarisation is around 29 mCm-2 and the duration of the switching current varies from about 50 μs to 150 μs for fields varying from 200 MV m-1 to 300 MV m-1. The switching current can be analysed using a domain nucleation and growth theory. The results indicate that domain nucleation may be inhibited by injected charge
Keywords :
dielectric polarisation; electrets; electric domains; ferroelectric materials; ferroelectric switching; polymer blends; polymer films; 300 K; 50 nm; 50 to 150 mus; P(VDF-TrFE); domain nucleation; electrets; ferroelectric copolymer film; growth theory; injected charge; spontaneous polarisation; switching transients; Ceramics; Equations; Ferroelectric films; Ferroelectric materials; Physics; Polarization; Polymer films; Pulse circuits; Temperature measurement; Thickness measurement;
Conference_Titel :
Electrets, 1994. (ISE 8), 8th International Symposium on
Conference_Location :
Paris
Print_ISBN :
0-7803-1940-0
DOI :
10.1109/ISE.1994.514839
