Zubko, P. and Jung, D. J. and Scott, J. F. (2006) Space charge effects in ferroelectric thin films. Journal of Applied Physics, 100. p. 114112. DOI https://doi.org/10.1063/1.2382459
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Abstract
The effects of space charges on hysteresis loops and field distributions in ferroelectrics have been investigated numerically using the phenomenological Landau-Ginzburg-Devonshire theory. Cases with the ferroelectric fully and partially depleted have been considered. In general, increasing the number of charged impurities results in a lowering of the polarization and coercive field values. Squarer loops were observed in the partially depleted cases and a method was proposed to identify fully depleted samples experimentally from dielectric and polarization measurements alone. Unusual field distributions found for higher dopant concentrations have some interesting implications for leakage mechanisms and limit the range of validity of usual semiconductor equations for carrier transport.
Item Type: | Article |
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Uncontrolled Keywords: | 2006 AREP IA52 2006 P |
Subjects: | 03 - Mineral Sciences |
Divisions: | 03 - Mineral Sciences |
Journal or Publication Title: | Journal of Applied Physics |
Volume: | 100 |
Page Range: | p. 114112 |
Identification Number: | https://doi.org/10.1063/1.2382459 |
Depositing User: | Sarah Humbert |
Date Deposited: | 16 Feb 2009 13:04 |
Last Modified: | 23 Jul 2013 09:54 |
URI: | http://eprints.esc.cam.ac.uk/id/eprint/845 |
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