Field-dependent dielectric permittivity of paraelectric superlattice structures

Authors
Christen, HM Knauss, LA Harshavardhan, KS
Citation
Hm. Christen et al., Field-dependent dielectric permittivity of paraelectric superlattice structures, MAT SCI E B, 56(2-3), 1998, pp. 200-203
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY
ISSN journal
09215107 → ACNP
Volume
56
Issue
2-3
Year of publication
1998
Pages
200 - 203
Database
ISI
SICI code
0921-5107(19981106)56:2-3<200:FDPOPS>2.0.ZU;2-C
Abstract
SrTiO3/SrZrO3 and SrTiO3/BaTiO3 superlattice structures have been grown by pulsed laser deposition, and their dielectric properties have been measured at room temperature and at 77 K. The electric field-dependence of the perm ittivity of both types of structures exhibits a different behavior from tha t observed in the corresponding solid solutions Sr(TixZr1-x)O-3 and (BaxSr1 -x)TiO3, respectively. For the case of the SrTiO3/SrZrO3 superlattices, the data is compatible with the assumption that strain induces ferroelectricit y in the SrTiO3 films at room temperature. (C) 1998 Elsevier Science S.A. A ll rights reserved.