Electronic Raman spectra for d+s wave superconductivity
Physique des Solides, Université Paris-Sud, 91400 Orsay, France
2 Department of Physics and Astronomy, University of Southern California, Los Angels, CA 90089-0484, USA
Accepted: 2 September 1997
We extend previous theoretical results of the literature to compute the electronic Raman spectra in the case of d+s wave superconductivity. We thus can reasonably describe the Raman spectra observed both in orthorhombic YBCO(123) and tetragonal Hg(1212). In particular, there seems to be a significant s-wave component in the latter compound. This may imply a breakdown of tetragonality in the superconducting phase of some superconductors of which crystal symmetry is believed to be tetragonal.
PACS: 74.25.Gz – Superconductivity: Optical properties / 74.72.Gr – Hg-based cuprates / 74.72.Bk – Y-based cuprates
© EDP Sciences, 1997