Published July 25, 1988 | Version v1
Journal article

Superconducting Bi-Ca-Sr-Cu oxide thin films by spray pyrolysis of metal acetates

  • 1. Department of Electrical and Computer Engineering, Department of Chemistry, and Materials Science Center, University of Wisconsin, Madison, Wisconsin 53706

Description

Superconducting Bi-Ca-Sr-Cu oxide thin films have been prepared on ZrO2-coated silicon (111) wafers by spray pyrolysis of metal acetate precursors followed by rapid annealing to 850 0C in air. Resistivity measurements indicate a broad superconducting transition with T/sub c/ onset near 90 K and zero resistivity below 60 K. The films are highly oriented with the c axis normal to the substrate surface and can be indexed to a tetragonal structure with lattice parameters of a = 3.832(1) A and c = 30.78(5) A. Both x-ray photoelectron spectroscopy and x-ray diffraction measurements indicate the loss of Ca to the ZrO2 buffer layer

Additional details

Publishing Information

Journal Title
Appl. Phys. Lett.
Journal Volume
53
Journal Issue
4
Series
Appl. Phys. Lett.
Journal Page Range
324-326
ISSN
0003-6951
CODEN
APPLA