Bi/Pb‐Sr‐Ca‐Cu‐0 Based Thick Film Superconductors on Various Metal Substrates

Abstract

Thick film superconductors with the nominal composition Bi2Pb0.5Sr2Ca2.5Cu3.5Ox were fired on stainless steel substrates and on alumina substrates covered with silver or gold thick film conductors. Films on stainless steel substrates were semiconducting due to reaction between the superconducting film and oxidised chromium and iron from the steel. Tc(R=0) of films on silver was between 80 K and 90 K while Tc (R=0) on gold was below 60 K. The low Tc (R=0) of films on gold is attributed to the interaction between the gold layer and copper from the superconductor.

Citation

Hrovat, M., Bernik, S., Rozman, M. and Kolar, D. (1994), "Bi/Pb‐Sr‐Ca‐Cu‐0 Based Thick Film Superconductors on Various Metal Substrates", Microelectronics International, Vol. 11 No. 1, pp. 12-14. https://doi.org/10.1108/eb044517