D
Derek C. Sinclair
Researcher at University of Sheffield
Publications - 280
Citations - 18374
Derek C. Sinclair is an academic researcher from University of Sheffield. The author has contributed to research in topics: Dielectric & Permittivity. The author has an hindex of 56, co-authored 264 publications receiving 15567 citations. Previous affiliations of Derek C. Sinclair include University of Edinburgh & Spanish National Research Council.
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Electroceramics: Characterization by Impedance Spectroscopy
TL;DR: In this paper, the authors used impedance spectroscopy for unravelling the complexities of such materials, which functions by utilizing the different frequency dependences of the constituent components for their separation, and showed that electrical inhomogeneities in ceramic electrolytes, electrode/electrolyte interfaces, surface layers on glasses, ferroelectricity, positive temperature coefficient of resistance behavior and even ferrimagnetism can all be probed, successfully.
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CaCu3Ti4O12: One-step internal barrier layer capacitor
TL;DR: Subramanian et al. as discussed by the authors attributed the giant-dielectric phenomenon to a grain boundary (internal) barrier layer capacitance (IBLC) instead of an intrinsic property associated with the crystal structure.
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Impedance and modulus spectroscopy of semiconducting BaTiO3 showing positive temperature coefficient of resistance
TL;DR: In this article, an analysis of ac impedance data using the complex impedance plane representation gives the dc resistance of polycrystalline barium titanate (PTCR) ceramics.
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Giant Barrier Layer Capacitance Effects in CaCu3Ti4O12 Ceramics
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A family of oxide ion conductors based on the ferroelectric perovskite Na0.5Bi0.5TiO3
Ming Li,Martha J. Pietrowski,Roger A. De Souza,Huairuo Zhang,Ian M. Reaney,Stuart N. Cook,John A. Kilner,Derek C. Sinclair +7 more
TL;DR: This study demonstrates how to adjust the nominal NBT composition for dielectric-based applications and gives NBT-based materials an unexpected role as a completely new family of oxide ion conductors with potential applications in intermediate-temperature SOFCs and opens up a new direction to design oxide ions conductors in perovskite oxides.