high-temperature superconductors;
superconducting filaments and wires;
superconducting films;
D O I:
10.1109/TASC.2007.899357
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
The reel-to-reel coated conductor facilities at Los Alamos National Laboratory enable electropolishing, ion-beam assist deposited (IBAD) MgO texturing, buffer layer deposition, REBaCuO pulsed laser deposition and position dependent critical current measurements, all in a continuous fashion. These systems allow development of long-length coated conductors as well as high-throughput experimentation by linear combinatorial design. We discuss how we utilize the deposition systems to obtain thickness profiles and study the properties of the films as a function of thickness. In particular we demonstrate that texture improves with thickness of epitaxial layers, whether homoepitaxial MgO or heteroepitaxial YBCO.