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High permittivity processed SrTiO3 for metamaterials applications at terahertz frequencies

Dupas, Cyrielle and Guillemet, Sophie and Geffroy, Pierre-Marie and Chartier, Thierry and Baillergeau, Matthieu and Mangeney, Juliette and Roux, Jean-François and Ganne, Jean-Pierre and Marcellin, Simon and Degiron, Aloyse and Akmansoy, Éric High permittivity processed SrTiO3 for metamaterials applications at terahertz frequencies. (2018) Scientific Reports, 8 (1). ISSN 2045-2322

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Official URL: https://doi.org/10.1038/s41598-018-33251-y

Abstract

High permittivity SrTiO3 for the realization of all-dielectric metamaterials operating at terahertz frequencies was fabricated. A comparison of different processing methods demonstrates that Spark Plasma Sintering is the most effective sintering process to yield high density ceramic with high permittivity. We compare this sintering process with two other processes. The fabricated samples are characterized in the low frequency and in the terahertz frequency ranges. Their relative permittivities are compared with that of a reference SrTiO3 single crystal. The permittivity of the sample fabricated by Spark Plasma Sintering is as high as that of the single crystal. The role of the signal-to-noise ratio in the measurements at terahertz frequency is detailed.

Item Type:Article
Additional Information:Open Access This article is licensed under a Creative Commons Attribution 4.0 International License
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Other partners > Institut polytechnique de Grenoble (FRANCE)
Other partners > Université de Paris Diderot - Paris 7 (FRANCE)
Other partners > Sorbonne Université (FRANCE)
Other partners > Thales (FRANCE)
Other partners > Université de Limoges - UNILIM (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Ecole Normale Supérieure de Paris - ENS Paris (FRANCE)
Other partners > Université de Savoie Mont Blanc - USMB (FRANCE)
Other partners > Université Paris-Sud 11 (FRANCE)
Laboratory name:
Funders:
Agence Nationale de la Recherche - ANR
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Deposited By: Yves MOMBOISSE
Deposited On:16 Dec 2019 10:05

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