Abstract
High quality YBa₂Cu₃Oₓ superconducting films have been deposited by laser deposition on yttrium stabilized cubic zirconia (YSZ) substrates using a partial pressure of air instead of oxygen. The Tc of these films was over 2° higher than films made in the same deposition system using oxygen. X-ray diffraction indicated that the films were oriented with the c axis normal to the substrate surface. The critical current densities of the films were on the order of 10⁶ A/cm² at 77 K and self-magnetic field, and the room-temperature resistivities were about 245 µὩ cm. A unique aspect of these films was that the normal state resistivities showed nonlinear behavior with respect to temperatures. No secondary phase was detected by x-ray diffraction and SQUID magnetometry.
Keywords
superconducting films, YBa₂Cu₃Oₓ, yttrium stabilized cubic zirconia substrates, YSZ, X-ray diffraction, SQUID magnetometry, resistivities
Subject Categories
Superconductors, Superconducting quantum interference devices, Pulsed laser deposition
Disciplines
Electromagnetics and photonics
Publisher
American Institute of Physics
Publication Date
12-14-1994
Rights Information
Copyright 1994 American Institute of Physics.
Rights Holder
American Institute of Physics
Permanent URL
Recommended Citation
Jiang, H.; Drehman, A. J.; Andrews, R. J.; Horrigan, J. A.; and Vittoria, C., "High-quality YBa₂Cu₃Ox films prepared in air using pulsed-laser deposition" (1994). Electrical and Computer Engineering Faculty Publications. Paper 59. http://hdl.handle.net/2047/d20002230
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Notes
Originally published in Applied Physics Letters 65, 3132 (1994). DOI:10.1063/1.113027 (http://dx.doi.org/10.1063/1.113027).