Title :
Transport properties of YBCO films on ultra-thin Ag layers
Author :
Zhong, C. ; Ruggiero, S.T. ; Fletcher, R. ; Moser, E.
Author_Institution :
Dept. of Phys., Notre Dame Univ., IN, USA
fDate :
6/1/1995 12:00:00 AM
Abstract :
We discuss our results on the transport properties of YBCO thin films deposited on ultra-thin (1-11 nm) Ag underlayers. Samples were of the form: YBCO/Ag/LaAlO/sub 3/. It was seen that T/sub c/ remained relatively unaffected by the Ag underlayers, ranging from 86-89 K. Critical currents generally decreased with increasing Ag underlayer thickness, but showed an apparent significant enhancement for 8 nm of underlayer thickness. Film resistivity was found to be consistently higher for all underlayer thicknesses.<>
Keywords :
barium compounds; critical current density (superconductivity); electrical resistivity; high-temperature superconductors; superconducting thin films; superconducting transition temperature; yttrium compounds; 1 to 11 nm; 86 to 89 K; YBCO films; YBCO/Ag/LaAlO/sub 3/; YBaCuO-Ag-LaAlO/sub 3/; critical current; critical temperature; resistivity; underlayer thickness; Conductivity; Critical current; Materials preparation; Physics; Sputtering; Steel; Substrates; Temperature; Thickness measurement; Yttrium barium copper oxide;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
