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High Tç Superconducting Thin Films, Devices, and Applications
Monochromatized Alkα XPS has been used to monitor changes in the electronic structure of 123 sintered pellets as a function of temperature (90-650K). Since 123 surfaces are known to lose oxygen and react with water, a novel procedure was used to prepare the material surface that would be representative of the bulk material. In contrast with published results, we observed drastic DOS modification (i.e. the appearance of a new peak close to the Fermi level at low temperature).
Conard, T. S., Vohs, J. M., Pireaux, J. J., & Caudano, R. (1988). XPS DOS Studies of Oxygen-Plasma Treated YBa2Cu3O7-δ Surfaces as a Function of Temperature. High Tç Superconducting Thin Films, Devices, and Applications, 182 240-247. Retrieved from https://repository.upenn.edu/cbe_papers/171
Date Posted: 01 December 2017