Affordable Access

deepdyve-link
Publisher Website

The Pairing Mechanism in HTSC investigated by Electronic Raman Scattering

Authors
  • Hoffmann, A.
  • Lemmens, P.
  • Winkeler, L.
  • Guentherodt, G.
Type
Preprint
Publication Date
Oct 18, 1994
Submission Date
Oct 18, 1994
Identifiers
DOI: 10.1007/BF00752288
arXiv ID: cond-mat/9410065
Source
arXiv
License
Unknown
External links

Abstract

By means of electronic Raman scattering we investigated the symmetry of the energy gap Delta(k), its temperature dependence and its variation with doping of well characterized Bi2Sr2CaCu2O8+delta single crystals. The oxygen content delta was varied between the under- and the overdoped regime by subsequently annealing the same single crystal in Ar and O2, respectively. The symmetry analysis of the polarized electronic Raman scattering is consistent with a d_x^2-y^2-wave symmetry of the energy gap in both regimes. The gap ratio 2Delta_max/k_BT_c and its temperature dependence changes with doping similar to predictions of theories based on paramagnon coupling.

Report this publication

Statistics

Seen <100 times