Title :
Ion beam deposition of high Tc superconducting thin film in the bismuth system
Author :
Huang, H.S. ; Pan, W.Y. ; Tang, B.B. ; Yang, Y.C. ; Liu, M.L. ; Liu, Y.Z. ; Mao, S.N. ; Cai, S.Z. ; Zhang, K.S.
Author_Institution :
Dept. of Phys., Tsinghua Univ., Beijing, China
fDate :
3/1/1991 12:00:00 AM
Abstract :
Processing for the preparation of superconducting thin films by ion-beam sputtering is discussed. The main factors affecting the composition of the as-deposited films are analyzed, and the effects of various heat treatments on the properties of annealed films are studied. Superconducting BiSrCaCuO films on SrTiO3 substrates with an onset temperature of 115 K and a zero-resistance temperature of 78 K were successfully prepared. The films had apparent c-axis texture. By adopting a Pb layer diffusion method, Bi(Pb)SrCaCuO films with a high-T c phase were obtained
Keywords :
bismuth compounds; calcium compounds; high-temperature superconductors; sputtered coatings; strontium compounds; superconducting thin films; BiSrCaCuO films; Pb layer diffusion method; composition; heat treatments; high temperature superconductor; ion-beam sputtering; superconducting thin films; Annealing; Bismuth; Ion beams; Solids; Sputtering; Steady-state; Substrates; Superconducting films; Superconducting thin films; Temperature distribution;
Journal_Title :
Magnetics, IEEE Transactions on
