Abstract
Angle- and spin-resolved photoemission spectra from Ni(110) have been measured in the temperature range . The data cannot be reconciled either with the predictions of local band theory assuming a temperature-independent exchange splitting or with a pure Stoner model. It is concluded that the exchange splitting decreases with increasing temperature and that spin fluctuations strongly influence the photoemission line shapes.
- Received 2 June 1983
DOI:https://doi.org/10.1103/PhysRevLett.51.829
©1983 American Physical Society