Change search
ReferencesLink to record
Permanent link

Direct link
Grain size effect on the nonlinear dielectric properties of barium titanate ceramics
Alexandru Ioan Cuza University.
Department of Materials and Environmental Chemistry, University of Stockholm.ORCID iD: 0000-0003-3060-9987
Show others and affiliations
2010 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 97, no 24Article in journal (Refereed) Published
Abstract [en]

The nonlinear dielectric properties of dense BaTiO(3) ceramics with grain size of 1 mu m-90 nm were investigated. In the finest ceramics, the permittivity reduces below 1000 and a remarkable nonhysteretic linear dc-tunability [epsilon(E)] is obtained at high field, above 40 kV/cm. The observed behavior was explained by considering the nanostructured ceramic as a composite formed by ferroelectric grains, whose nonlinearity is reducing, and by low-permittivity nonferroelectric grain boundaries, whose volume fraction increases when decreasing the grain size. Reducing the grain size in ferroelectric dense materials is an alternative route to accomplish the application requirements: nonhysteretic tunability and permittivity below 1000.

Place, publisher, year, edition, pages
American Institute of Physics (AIP), 2010. Vol. 97, no 24
Keyword [en]
Alternative routes, Application requirements, Barium titanate ceramics, Dense materials, Ferroelectric grains, Grain size, Grain size effect, High field, Nanostructured ceramic, Non-Linearity, Nonlinear dielectric properties, Tunabilities
National Category
Ceramics Condensed Matter Physics
URN: urn:nbn:se:kth:diva-86997DOI: 10.1063/1.3526375ISI: 000285481000061OAI: diva2:501278
QC 20120215Available from: 2012-02-14 Created: 2012-02-14 Last updated: 2012-02-15Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Zhao, Zhe
In the same journal
Applied Physics Letters
CeramicsCondensed Matter Physics

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 47 hits
ReferencesLink to record
Permanent link

Direct link