Ten-fold tunability of the permittivity of Ba1-XSrXTiO3 in epitaxial multilayers with (Y/Nd)Ba2Cu3O7-delta

Authors
Boikov, YA Ivanov, ZG Claeson, T
Citation
Ya. Boikov et al., Ten-fold tunability of the permittivity of Ba1-XSrXTiO3 in epitaxial multilayers with (Y/Nd)Ba2Cu3O7-delta, IEEE APPL S, 9(2), 1999, pp. 4193-4196
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
ISSN journal
10518223 → ACNP
Volume
9
Issue
2
Year of publication
1999
Part
3
Pages
4193 - 4196
Database
ISI
SICI code
1051-8223(199906)9:2<4193:TTOTPO>2.0.ZU;2-G
Abstract
Dielectric properties of 400-600 nm thick epitaxial layers of SrTiO3 and Ba 0.9Sr0.1TiO3, inserted between YBa2Cu3O7-delta or NdBa2Cu3O7-delta electrod es, were investigated as functions of temperature and electric field. The e lectric field response of the dielectric permittivity of the ferro electric layer correlated with the Curie point and was considerably higher with Nd based than with Y based superconducting electrodes. Insertion of thin buffe r layers improved the tunability and decreased the microwave losses of the Ba doped dielectric.