2004/07/02 by O. Rösch, O. Gunnarsson · 1 citation
Materials Science · Physics and Astronomy · #Advanced Chemical Physics Studies #Organic and Molecular Conductors Research #Physics of Superconductivity and Magnetism #cond-mat.mtrl-sci #cond-mat.str-el
paper · pdf · doi:10.1103/physrevlett.93.237001
published as Phys. Rev. Lett. 93, 237001 (2004) · 4 pages, RevTeX, 2 eps figures
arxiv created 2004/07/02 · openalex publication_date 2004/11/29 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study the interaction of electrons with phonons in strongly correlated solids, having high-T(c) cuprates in mind. Using sum rules, we show that the apparent strength of this interaction strongly depends on the property studied. If the solid has a small fraction (doping) delta of charge carriers, the influence of the interaction on the phonon self-energy is reduced by a factor delta, while there is no corresponding reduction of the coupling seen in the electron self-energy. This supports the interpretation of recent photoemission experiments, assuming a strong coupling to phonons.