Oxygen Bonding in High-Temperature Superconductors
- 1 November 1988
- journal article
- Published by IOP Publishing in Europhysics Letters
- Vol. 7 (5) , 469-472
- https://doi.org/10.1209/0295-5075/7/5/016
Abstract
Oxygen evolution experiments in low- and high-Tc ceramic superconductors are used to identify the desorption kinetics and activation energies. It is found that oxygen desorps at 600 °C from Cu-O chains (where present) with an activation energy of 1.2 eV, whereas the desorption from other oxygen-containing planes occurs at 800 °C with a higher activation energy of 2.8 eV.Keywords
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