Title :
YBaCuO/TlBaCaCuO epitaxial thin film superconducting multilayers-a novel approach to intrinsic Josephson junction devices
Author :
Veith, M. ; Kirsch, K. ; Eick, T. ; Steinbeiss, E.
Author_Institution :
Inst. fur Phys. Hochtechnol., Jena, Germany
fDate :
6/1/1997 12:00:00 AM
Abstract :
Tl/sub 2/Ba/sub 2/CaCu/sub 2/O/sub 8/ (TBCCO) thin films have been deposited on top of YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// (YBCO) thin films. Both layers are superconducting with T/sub c/ values of 105 K and 75 K respectively and in superconducting contact. XRD scans show the TBCCO film to grow epitaxially and c-axis oriented on the YBCO ground layer. Possible applications for such multilayers are novel concepts for intrinsic Josephson arrays requiring well defined mesa structures of TBCCO.
Keywords :
Josephson effect; X-ray diffraction; barium compounds; calcium compounds; high-temperature superconductors; superconducting epitaxial layers; superconducting superlattices; thallium compounds; yttrium compounds; Josephson array; Tl/sub 2/Ba/sub 2/CaCu/sub 2/O/sub 8/-YBa/sub 2/Cu/sub 3/O/sub 7/; XRD; YBCO/TBCCO epitaxial thin film superconducting multilayer; intrinsic Josephson junction device; mesa structure; Josephson junctions; Microwave antenna arrays; Nonhomogeneous media; Sputtering; Substrates; Superconducting epitaxial layers; Superconducting films; Superconducting thin films; Thin film devices; Yttrium barium copper oxide;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
