Journal Article

PreJuSER-3384

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Non-linear properties of BaTiO3 above Tc

Rusek, K. ; Kruczek, J. ; Szot, K.FZJ*

2008
Taylor & Francis London [u.a.]

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Please use a persistent id in citations: doi:10.1080/00150190802438025

Abstract: Although numerous papers on physical properties of the BaTiO3 crystal can be found in literature, there is a lack of tentative studies of its properties in temperature range close to but above T-C. That is why investigations of temperature dependence of the dielectric properties, electrostrictive strain and thermal expansion have been undertaken. Results obtained point to non-linear behaviour of all these properties even tens degrees above TC. Especially the non-linear thermal expansion, first time measured in detail for BaTiO3 above TC, implies the existence of micro/nano-polar regions whose temperature stability and sizes are responsible for temperature hysteresis above T-C.

Keyword(s): J ; Electrostriction (auto) ; thermal expansion (auto) ; polar regions (auto)

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Elektronische Materialien (IFF-6)
2. Jülich-Aachen Research Alliance - Fundamentals of Future Information Technology (JARA-FIT)

Research Program(s):

1. Grundlagen für zukünftige Informationstechnologien (P42)

Appears in the scientific report 2008

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