Electronic Raman scattering in cuprates

ORAL

Abstract

We report electronic Raman response in mercury compound. In cuprates, the superconducting gap reaches its maximum values along the antinodal directions and vanishes along nodal directions corresponding respectively to the principal axes and the diagonal in the Brillouin zone. We will present both the antinodal ($B_{1g}$) and nodal ($B_{2g}$) responses as a function of doping and temperature. We will also report the full symmetric Raman response ($A_{1g}$) as a function of doping.

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Authors

  • William Guyard

    • Laboratoire Mat\'eriaux et Ph\'enom\`enes Quantiques (Universit\'e Paris Diderot-Paris 7, CNRS)

  • Mathieu Le Tacon

    • European Synchrotron Radiation Facility

  • Maximilien Cazayous

    • Laboratoire Mat\'eriaux et Ph\'enom\`enes Quantiques (Universit\'e Paris Diderot-Paris 7, CNRS)

  • Alain Sacuto

    • Laboratoire Mat\'eriaux et Ph\'enom\`enes Quantiques (Universit\'e Paris Diderot-Paris 7, CNRS)
    • University Denis Diderot- Paris 7

  • Antoine Georges

    • Centre de Physique Th\'eorique, Ecole Polytechnique

  • Doroth\'ee Colson

    • Service de Physique de l'Etat Condens\'e, CEA-Saclay
    • Service de Physique de l'Etat Condens\'e - DSM/DRECAM - CEA Saclay - 91191 Gif-Sur-Yvette Cedex - France

  • Anne Forget

    • Service de Physique de l'Etat Condens\'e, CEA-Saclay