Time-dependent space-charge-limited conduction as a possible origin of the polarization offsets observed in compositionally graded ferroelectric films
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چکیده
منابع مشابه
Effect of space charge on the polarization hysteresis characteristics of monolithic and compositionally graded ferroelectrics
A non-linear thermodynamic analysis of ferroelectric systems with localized space charges for monolithic and compositionally graded materials is described wherein the electrostatic interlayer interactions are specifically accounted for. The electrostatic coupling is established through the built-in polarization due to the space charges and the intrinsic polarization variations between the ferro...
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for enhanced dielectric response and tunability M. B. Okatan, A. L. Roytburd, J. V. Mantese, and S. P. Alpay Materials Science and Engineering Program and Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, USA Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, USA United Technologies Research Center, East Har...
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A novel and rather simple method is presented to describe the physics of space-charge region in a planar diode. The method deals with the issue in the time domain and as a consequence transient time behavior can be achieved. Potential distributions and currents obtained using this technique, supposing zero initial velocity for electrons, reveal absolute agreement with Child's results. Moreover,...
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Recently, there has been significant interest toward the development of tunable dielectric materials for voltage-controlled, frequency-agile phase shifters and filters operating in the microwave regime. The fundamental challenge in designing materials systems for such tunable devices is the simultaneous requirement of high dielectric tunability ([40%) over a large temperature interval (-10 C to...
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ژورنال
عنوان ژورنال: Journal of Applied Physics
سال: 2004
ISSN: 0021-8979,1089-7550
DOI: 10.1063/1.1647258