Conduction mechanism investigation in YCa2Cu3Oδ colossal permittivity ceramics

Sol-gel synthesized YCa2Cu3Oδ ceramic exhibits giant permittivity εr′≈104, low loss tanδ0.3, and high stability over frequency and temperature. XRD revealed a tetragonal phase (P4/mmm). XPS confirmed high oxygen vacancy density. The structural heterogeneity, shown by SEM, between neighboring grains...

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Bibliographic Details
Main Authors: Wael Chouk, Mohamed Annabi, Mouldi Zouaoui
Format: Article
Language:English
Published: Elsevier 2025-06-01
Series:Results in Physics
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Online Access:http://www.sciencedirect.com/science/article/pii/S2211379725001780
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