Superconducting electronics in the Tl[BOND]Ca[BOND]Ba[BOND]Cu[BOND]O System


  • The authors wish to thank V. M. Hietala, T E. Zipperian, C. P. Tigges and T A. Plut of Sandia National Laboratories for contributions in all phases of this work. Much of this work has been supported by the U.S. Department of Energy under contract No. DE-AC04–76P00789.


The high-Tc superconductor (HTS) Tl-Ca-Ba-Cu-O is an attractive material for applications because of its high transition temperature and structural properties. The bassic structural features, methods of film growth, device processing sequences, and some device and microwave circuit applications are discussed, with special attention being paid to active devices based both on Josephson junctions and on controlled flux flow in the non-Josephson domain.