Dielectric properties of SrTiO3 thin films grown on various perovskite electrodes by pulsed laser deposition

Citation
Hc. Li et al., Dielectric properties of SrTiO3 thin films grown on various perovskite electrodes by pulsed laser deposition, MAT SCI E B, 56(2-3), 1998, pp. 218-222
Citations number
7
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
218 - 222
Database
ISI
SICI code
0921-5107(19981106)56:2-3<218:DPOSTF>2.0.ZU;2-S
Abstract
The dielectric properties of SrTiO3 (STO) thin films deposited on LaAlO3 (L AO) substrates with various perovskite conducting layer including YBa2Cu3O7 (YBCO), SmBa2Cu3O7 (SmBCO), GdBa2Cu3O7 (GBCO) and SrRuO3 (SRO) as bottom e lectrode in a parallel-plate capacitor configuration were evaluated. The la ttice mismatch between STO and different electrode materials varies markedl y, but the dielectric constants of the STO films were not much different fo r different bottom electrodes. However, lower dielectric loss was observed in STO films on SRO electrodes. Under the optimum deposition conditions the tunability was large and the loss tangent was in the range of 0.001-0.01 a t 1 kHz and zero bias field. (C) 1998 Elsevier Science S.A. All rights rese rved.