Research Papers in Physics and Astronomy

 

Date of this Version

12-25-1995

Comments

Published by American Institute of Physics. Applied Physics Letters, 67, 3975-3977 (1995). ©1995 American Institute of Physics. Permission to use. Journal home page = http://jap.aip.org/jap/.

Abstract

We have established ferroelectric switching and observed a novel conductance switching phenomenon in ferroelectric polymer films fabricated by the Langmuir–Blodgett technique. The films consist of 10–30 monolayers (ML) of a copolymer of vinylidene fluoride (70%) and trifluoroethylene (30%), exhibiting a first-order ferroelectric phase transition at 70 °C and nearly rectangular ferroelectric and conductance hysteresis at 24 °C. Ferroelectric switching is accompanied by switching of the conductance by three orders of magnitude. A model describing this switching phenomenon is proposed.

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