A new method for achieving enhanced dielectric response over a wide temperature range

We report a novel approach for achieving high dielectric response over a wide temperature range. In this approach, multilayer ceramic heterostructures with constituent compositions having strategically tuned Curie points ( T C ) were designed and integrated with varying electrical connectivity. Inte...

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Bibliographic Details
Published in:Scientific reports 2015-10, Vol.5 (1), p.15144-15144, Article 15144
Main Authors: Maurya, Deepam, Sun, Fu-Chang, Pamir Alpay, S., Priya, Shashank
Format: Article
Language:English
Subjects:
639/301/1005/1007
639/301/119/996
Boundary conditions
Dielectric properties
Electrostatic properties
High temperature
Humanities and Social Sciences
MATERIALS SCIENCE
multidisciplinary
Phase transitions
Point defects
Science
Temperature effects
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Summary:We report a novel approach for achieving high dielectric response over a wide temperature range. In this approach, multilayer ceramic heterostructures with constituent compositions having strategically tuned Curie points ( T C ) were designed and integrated with varying electrical connectivity. Interestingly, these multilayer structures exhibited different dielectric behavior in series and parallel configuration due to variations in electrical boundary conditions resulting in the differences in the strength of the electrostatic coupling. The results are explained using nonlinear thermodynamic model taking into account electrostatic interlayer interaction. We believe that present work will have huge significance in design of high performance ceramic capacitors.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep15144