SPUTTERING SYNTHESIS OF AS-GROWN SUPERCONDUCTING BISRCACUO THIN-FILM WITH SINGLE HIGH-TC PHASE

A Bi2Sr2Ca2Cu3O10 film with a single high-Tc phase was reactively deposited on MgO (100) substrates at about 100°C by a facing targets sputtering technique. The as-grown film showed Tcon of 95 K and Tcend of 49 K. It is found from discussions based on a x-ray diffraction analysis or a x-ray photoelectron spectroscopy that the superconductivity is reduced by imperfections of the crystal: an intergrowth and a site disorder. © 1990, Elsevier Science Publishers B.V. (North-Holland). All rights reserved.