Transport properties of YBCO films on ultra-thin Ag layers

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.<
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