Published September 15, 2003
| Version v1
Journal article
Ferroelectric properties of (Ba,Sr)TiO3 thin films grown on YBa2Cu3O7 layers
Description
Ferroelectric and superconductor bilayers of Ba1-xSrxTiO3 (BST)/YBa2Cu3 O7 (YBCO) are grown on (001) SrTiO3 substrates by magnetron sputtering and pulsed laser deposition. The BST thin films exhibit typical ferroelectric behavior in their hysteresis loops. Capacitance-voltage curves are measured. From the capacitance, a dielectric constant of 1250 is obtained. The current-voltage curve is fitted to investigate the mechanism of leakage. The Schottky barrier height at the Ag/BST interface is calculated to be 0.521 eV. The trapped level Et in BST is estimated to be 0.335 eV below the conduction-band edge. An energy band diagram of the Ag/BST/YBCO structure is proposed to explain the experimental results
Additional details
Identifiers
- DOI
- 10.1063/1.1596714;
Publishing Information
- Journal Title
- Journal of Applied Physics
- Journal Volume
- 94
- Journal Issue
- 6
- Journal Page Range
- p. 4042-4046
- ISSN
- 0021-8979
- CODEN
- JAPIAU
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36005517
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
- Descriptors DEI
- BARIUM COMPOUNDS; CRYSTAL GROWTH; CUPRATES; ENERGY BEAM DEPOSITION; EV RANGE 01-10; FERROELECTRIC MATERIALS; HIGH-TC SUPERCONDUCTORS; HYSTERESIS; LASER RADIATION; MAGNETRONS; PERMITTIVITY; PULSED IRRADIATION; SCHOTTKY DEFECTS; SPUTTERING; STRONTIUM TITANATES; SUPERCONDUCTORS; SURFACE COATING; THIN FILMS; TITANIUM OXIDES; YTTRIUM COMPOUNDS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; DEPOSITION; DIELECTRIC MATERIALS; DIELECTRIC PROPERTIES; ELECTRICAL PROPERTIES; ELECTROMAGNETIC RADIATION; ELECTRON TUBES; ELECTRONIC EQUIPMENT; ENERGY RANGE; EQUIPMENT; EV RANGE; FILMS; IRRADIATION; MATERIALS; MICROWAVE EQUIPMENT; MICROWAVE TUBES; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; POINT DEFECTS; RADIATIONS; STRONTIUM COMPOUNDS; SUPERCONDUCTORS; SURFACE COATING; TITANATES; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS; VACANCIES
Optional Information
- Notes
- (c) 2003 American Institute of Physics.