Ionic Polarization Occurrence in BaSrTiO3 Thin Film by THz-Time Domain Spectroscopy

Abstract : BaSrTiO3 thin films in a paraelectric phase were characterized on the one hand from 1 GHz to 200 GHz by microwave measurements on interdigitated capacitance and coplanar waveguides and on the other hand up to 3 THz by Time Domain Spectroscopy. An overlap of the polar nanoregion relaxation mechanism with a characteristic frequency around 800 GHz and of the ionic polarization with a relaxation frequency around 3 THz is directly evidenced experimentally.
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Ferroelectrics, Taylor & Francis: STM, Behavioural Science and Public Health Titles, 2012, 430 (1), pp.36-41. <10.1080/00150193.2012.677682>
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https://hal.archives-ouvertes.fr/hal-00718742
Contributeur : Bernadette Bergeret <>
Soumis le : mercredi 18 juillet 2012 - 10:01:22
Dernière modification le : mercredi 18 juillet 2012 - 10:01:22

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Grégory Houzet, Karine Blary, Sylvie Lépilliet, Didier Lippens, Ludovic Burgnies, et al.. Ionic Polarization Occurrence in BaSrTiO3 Thin Film by THz-Time Domain Spectroscopy. Ferroelectrics, Taylor & Francis: STM, Behavioural Science and Public Health Titles, 2012, 430 (1), pp.36-41. <10.1080/00150193.2012.677682>. <hal-00718742>

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