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The Order Parameters for Pairing and Phase Coherence in Cuprates; the Magnetic Origin of the Coherent Gap. The MCS Model of High-Tc Superconductivity

par Mourachkine, Andrei
Référence Journal of low temperature physics, 117, 3-4, page (401-405)
Publication Publié, 1999

Article révisé par les pairs

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Résumé :

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 2Δc/kBTc = 5.4. We discuss a model of the superconductivity in hole-doped cuprates and the symmetries of two order parameters.