Initial stages of degradation of superconductor surfaces: O2, H2O, CO2, and CO chemisorption on La2-xSrxCuO4
The initial stages of degradation of high-Tc superconductor surfaces by interaction with atmospheric gases have been studied using ultraviolet photoelectron spectroscopy. O2 has little effect, while H2O adsorbs dissociatively with an initial sticking coefficient S01, and form a surface hydroxide. CO2 adsorbs forming a carbonatelike surface species with an initial sticking coefficient of 0.3. CO is observed to result in similar adsorbed surface species with a much lower sticking coefficient of 3×10-4. © 1988 The American Physical Society.
Publication Source (Journal or Book title)
Physical Review B
Kurtz, R., Stockbauer, R., Madey, T., Mueller, D., Shih, A., & Toth, L. (1988). Initial stages of degradation of superconductor surfaces: O2, H2O, CO2, and CO chemisorption on La2-xSrxCuO4. Physical Review B, 37 (13), 7936-7939. https://doi.org/10.1103/PhysRevB.37.7936