2002/07/04 by S. Verga, Verga, S., A. Knigavko +3
Physics and Astronomy · #FOS: Physical sciences #Superconductivity (cond-mat.supr-con) #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.cond-mat/0207145
v2: More detailed discussion of the used inversion procedure is added
arxiv created 2003/01/30 · arxiv updated 2009/11/30
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.