Abstract
Electron-energy-loss spectroscopy has been used to investigate the changes of the electronic structure in (0≤x≤1). The O 1s absorption edges and the low-energy-loss function indicate that Pr does not fill holes in the planes. This suggests, by comparison with other experiments, that Pr localizes mobile holes thereby leading to the suppression of superconductivity and the metal-insulator transition.
- Received 22 May 1990
DOI:https://doi.org/10.1103/PhysRevB.42.4823
©1990 American Physical Society