2003/09/07 by Anders W. Sandvik, A. W. Sandvik, D. J. Scalapino +1 · 5 citations
Physics and Astronomy · #Advanced Chemical Physics Studies #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #cond-mat.str-el #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.69.094523
10 pages, 14 figures (color versions of Figs. 2,4,10,11,12 available upon request)
arxiv created 2003/09/07 · openalex publication_date 2004/03/30 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We analyze the effects of an electron-phonon interaction on the one-electron spectral weight A(k,\ensuremathω) of a d_x2\ensuremath-y2 superconductor. We study the case of an Einstein phonon mode with various momentum-dependent electron-phonon couplings and compare the structure produced in A(k,\ensuremathω) with that obtained from coupling to the magnetic \ensuremathπ-resonant mode. We find that if the strength of the interactions are adjusted to give the same renormalization at the nodal point, the differences in A(k,\ensuremathω) are generally small but possibly observable near k=(\ensuremathπ,0).