Rapid Epitaxial Growth of GdBa2Cu3O7-σ Films by Dilute Co Doping
Creators
- 1. Southwest Jiaotong University, Key Laboratory of Advanced Technologies of Materials (Ministry of Education of China), School of Materials Science and Engineering (China)
- 2. Southwest Jiaotong University, Key Laboratory of Magnetic Levitation and Maglev Trains (Ministry of Education of China), School of Electrical Engineering (China)
Description
The effect of dilute Co doping on the epitaxial growth of GdBCO films was investigated by self-developed fluorine-free polymer-assisted metal-organic deposition (PA-MOD) method. Under the same sintering heat treatment, dilute Co doping dramatically improved the crystallinity, microstructure, and critical current density (Jc) of GdBCO films. High Jc of 4.0 MA/cm2 at 77 K and self-field was obtained in Co-doped film after only sintering for 30 min, which is eight times of the Jc for the undoped film. Also, Co-doped GdBCO film sintered for as short as 20 min still possesses a high Jc of 1.5 MA/cm2, whereas the Jc is 0 for the similarly sintered pure film. These results suggest that dilute Co doping facilitates the epitaxial growth of the high-performance GdBCO film.
Additional details
Identifiers
Publishing Information
- Journal Title
- Journal of Superconductivity and Novel Magnetism
- Journal Volume
- 32
- Journal Issue
- 11
- Journal Page Range
- p. 3449-3455
- ISSN
- 1557-1939
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 51083191
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- BARIUM COMPOUNDS; COBALT ADDITIONS; CRITICAL CURRENT; CUPRATES; DEPOSITION; DOPED MATERIALS; EPITAXY; GADOLINIUM COMPOUNDS; HEAT TREATMENTS; HIGH-TC SUPERCONDUCTORS; MICROSTRUCTURE; ORGANOMETALLIC COMPOUNDS; POLYMERS; SUPERCONDUCTING FILMS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ALLOYS; COBALT ALLOYS; COPPER COMPOUNDS; CRYSTAL GROWTH METHODS; CURRENTS; ELECTRIC CURRENTS; FILMS; MATERIALS; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; SUPERCONDUCTORS; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS
Optional Information
- Copyright
- Copyright (c) 2019 Springer Science+Business Media, LLC, part of Springer Nature