Initial stages of degradation of superconductor surfaces: O2, H2O, CO2, and CO chemisorption on La2-xSrxCuO4

Authors

Richard L. Kurtz, National Institute of Standards and Technology
Roger Stockbauer, National Institute of Standards and Technology
Theodore E. Madey, National Institute of Standards and Technology
Donald Mueller, Naval Research Laboratory
Arnold Shih, Naval Research Laboratory
Louis Toth, Naval Research Laboratory

Document Type

Article

Publication Date

1-1-1988

Abstract

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

First Page

7936

Last Page

7939

Recommended Citation

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