Midinfrared absorption in Y Ba2 Cu3 O6: Evidence for a failure of spin-wave theory for spin (1/2) in two dimensions

  • Author:

    M. Grüninger, D. van der Marel, A. Damascelli, A. Erb, T. Nunner, and T. Kopp
  • Source:

    Phys. Rev. B 62, 12422 (2000)
  • Date: 1 November 2000