Abstract
YBa2Cu3O7 (YBCO) films were grown on polycrystalline silver substrates by metalorganic chemical vapor deposition (MOCVD) in high magnetic fields. It is demonstrated that a magnetic field affected the microstructure of the films on polycrystalline silver substrates. Large square-shaped grains were observed in the 0 T films. The grain size was drastically reduced by application of a few tesla fields, then changed to small grains with an irregular shape above 4 T. Furthermore, it is found that application of a large magnetic field during the deposition improved the crystallinity and grain connectivity of YBCO films, leading to the improvement of the critical current density Jc.
Original language | English |
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Pages (from-to) | 337-340 |
Number of pages | 4 |
Journal | Physica C: Superconductivity and its applications |
Volume | 357-360 |
DOIs | |
Publication status | Published - 2001 Sep |
Keywords
- Chemical vapor deposition
- Magnetic field
- Silver particles
- YBaCuO films
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering