Observation of magnetic fields due to persistent currents in a ring made of a coated conductor
- Goo, Doo-Hoon (Physics Department, Korea Advanced Institute of Science and Technology) ;
- Kim, Ho-Sup (Physics Department, Korea Advanced Institute of Science and Technology) ;
- Youm, D. (Physics Department, Korea Advanced Institute of Science and Technology) ;
- Jung, Kook-Chae (Physics Department, Korea Advanced Institute of Science and Technology)
- Published : 2000.08.16
Abstract
A ring comprising a coated conductor was fabricated. A ring was made first using a biaxially textured Ni tape whose two ends were connected by means of the atomic diffusion bonding technique. Then buffer layers and a YBCO film were deposited on it. All the films were well textured as confirmed by XRD pole figures. The B-H loops, where B and H are the magnetic field at the center of the ring and the applied field respectively, were measured as a function of temperature. The persistent current density (J