1999/08/05 by A. Mourachkine
Physics and Astronomy · #cond-mat.supr-con #cond-mat.str-el
published as J. Low Temp. Physics 117 (1999) 401- 405 · 5 pages (will appear in Journal of Low Temperature Physics, MOS-99 proceedings)
arxiv created 1999/08/05 · arxiv updated 2009/11/30
The phase diagram of order parameters for pairing and phase coherence in hole-doped cuprates is discussed. By examining carefully some recent inelastic neutron scattering data obtained on hole-doped cuprates and heavy fermion compound UPd2Al3 in which the superconductivity is mediated by spin fluctuations, we conclude that the coherent gap in hole-doped cuprates has most likely the magnetic origin and scales with Tc, on average, as 2Dc/kBTc = 5.4. We discuss a model of the superconductivity in hole-doped cuprates and the symmetries of two order parameters.