Abstract
Recent energy dispersion measurements in several families of the hole-doped copper oxides have revealed a kink in the energy vs momentum relation. These have tentatively been identified as due to electron-phonon coupling. We invert this data directly to determine the bosonic spectral function; the kink gives rise to a singular function in the phonon energy region.
- Received 20 June 2002
DOI:https://doi.org/10.1103/PhysRevB.67.054503
©2003 American Physical Society
