Abstract
We propose a systematic procedure to directly extract the Eliashberg function for electron-phonon coupling from high-resolution angle-resolved photoemission measurement. The procedure is successfully applied to the surface, providing new insights into electron-phonon coupling at this surface. The method is shown to be robust against imperfections in experimental data and suitable for wider applications.
- Received 4 August 2003
DOI:https://doi.org/10.1103/PhysRevLett.92.186401
©2004 American Physical Society