Abstract
High-resolution spin-resolved photoemission is used to probe the decay channels available to a photohole created in a Gd(0001) surface state. The photoemission linewidths show that at low temperatures, the lifetime of a majority-spin hole is predominantly limited by electron-phonon scattering and that of a minority-spin hole by electron-magnon scattering. With increasing temperature this state shows both spin-mixing behavior reflecting the exchange of magnons and a reduced exchange splitting.
- Received 20 March 2002
DOI:https://doi.org/10.1103/PhysRevB.65.212409
©2002 American Physical Society