Abstract
X-ray photoemission spectroscopy measurements were performed on thin-film samples of rutile to reveal the electronic structure. The Co core-level spectra indicate that the Co ions take the high-spin configuration, consistent with substitution on the Ti site. The high-spin state and the shift due to the exchange splitting of the conduction band suggest strong hybridization between carriers in the Ti band and the states of the high-spin . These observations support the argument that room temperature ferromagnetism in is intrinsic.
- Received 23 February 2005
DOI:https://doi.org/10.1103/PhysRevLett.96.027202
©2006 American Physical Society