Basal plane oxygen vapor pressure of Co-doped YBa2Cu3O7−δ
- 29 June 1998
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 72 (26) , 3512-3514
- https://doi.org/10.1063/1.121644
Abstract
Transport data for YBa2Cu3−xCoxOz thin films, with x=0.3, 0.5, 0.75, and 1.0, are reported as a function of annealing history in O2 and O2/O3 at temperatures ranging from 200 to 500 °C. For x=0.3 and 0.5, O2/O3 anneals resulted in maximal Tc’s significantly higher than any previously reported, while in all cases the annealing substantially increased the film’s conductivity. Subsequent anneals in O2 resulted in oxygen loss, demonstrating that these materials have a much higher oxygen vapor pressure in the well-oxygenated state than YBa2Cu3O7−δ.Keywords
This publication has 14 references indexed in Scilit:
- Micro-Raman spectroscopy studies of Co doped Y-Ba-Cu-O thin filmsIEEE Transactions on Applied Superconductivity, 1997
- Properties of cobalt-doped YBa2Cu3O7−δ thin filmsPhysica C: Superconductivity and its Applications, 1996
- High-T c superconductor/normal-metal/superconductor edge junctions and SQUIDs with integrated groundplanesApplied Physics Letters, 1996
- Properties of YBa2Cu3O7−x/YBa2Cu2.79Co0.21O7−x/YBa2 Cu3O7−x edge junctionsApplied Physics Letters, 1994
- Oxidation kinetics of YBa2Cu3O7-γ thin films in different oxidizing ambientsApplied Surface Science, 1993
- Thermodynamics of oxygen in Y1Ba2Cu3Ox between 450°C and 650°CPhysica C: Superconductivity and its Applications, 1991
- High-Pressure Synthesis of Superconducting YSr2Cu3OyJapanese Journal of Applied Physics, 1990
- Stabilization of strontium analogs of barium yttrium cuprate perovskites via chemical substitutionChemistry of Materials, 1989
- Theory for oxygen content and ordering in in equilibrium with oxygen gasPhysical Review B, 1989
- Superconductivity in YBa2−xSrxCu3O7−δApplied Physics Letters, 1987