| Issue |
Europhys. Lett.
Volume 40, Number 2, October II 1997
|
|
|---|---|---|
| Page(s) | 201 - 206 | |
| Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
| DOI | https://doi.org/10.1209/epl/i1997-00541-0 | |
| Published online | 01 September 2002 | |
Electronic Raman spectra for d+s wave superconductivity
1
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
Received:
20
June
1997
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
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