Abstract
X-ray-absorption -edge spectra of the V core level in V exhibit broadening and splitting of the core transition at the threshold at the semiconductor-to-metal phase transition. The three components observed in the metallic phase are assigned to final-state configurations characterized by different occupation numbers of the localized band at the Fermi level: , , and . In the low-temperature semiconducting phase only the final-state configuration is present. This experiment shows the core-hole-induced relaxation in x-ray-absorption spectroscopy of a narrow-band metal, where electron correlation is not negligible.
- Received 26 February 1982
DOI:https://doi.org/10.1103/PhysRevB.26.2741
©1982 American Physical Society