The Magnetic Origin of the Coherent Order Parameter in Hole- Doped Cuprates
نویسنده
چکیده
The phase diagram for hole-doped cuprates is discussed. By examining some recent inelastic neutron scattering data obtained on hole-doped cuprates we conclude that the coherent gap in hole-doped cuprates has most likely the magnetic origin and scales with Tc, on average, as 2∆c/kBTc = 5.4.
منابع مشابه
The Order Parameters for Pairing and Phase Coherence in Cuprates; the Magnetic Origin of the Coherent Gap. The MCS Model of High-Tc Superconductivity
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 ori...
متن کاملEvidence for the presence of the magnetically-mediated superconductivity in hole-doped cuprates
The phase diagram of hole-doped cuprates is discussed. By examining carefully some recent inelastic neutron scattering data obtained on hole-doped cuprates and on a 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 2∆c/kBTc...
متن کاملعدم تقارن الکترون-حفره در کوپراتهای دمای بالا از دید نظری
Asymmetric features of various physical quantities in the normal and superconducting states between hole- and electron-doped cuprate high-temperature superconductors have been an issue of debate for a long time. Their exploration is very important for the understanding not only of the mechanism of high-Tc superconductivity but also of the nature of doped-Mott insulators. Presented in this rev...
متن کاملInterpretation of Inelastic Neutron Scattering Data Using the Phase Diagram of Hole-Doped Cuprates
Inelastic Neutron Scattering (INS) data in La2-xSrxCuO4 (LSCO), YBa2Cu3O6+x (YBCO) and Bi2Sr2CaCu2O8+x (Bi2212) are discussed. In the literature, the INS spectra remain far from being comprehensively understood. We show that local (Q-integrated) susceptibility data and the energy dependence of the spin susceptibility at antiferromagnetic vector, QAF = (π,π), can be interpreted by using the phas...
متن کاملMagnetic, Spinon and Phonon Superconductivities in Cuprates
The disclosure of the magnetic and spinon superconductivities in hole-doped Bi 2 Sr 2 CaCu 2 O 8+x (Bi2212) cuprate raises the question about the origin of the superconductivity in other cuprates and specially in an electron-doped Nd 2-x Ce x CuO 4 (NCCO) cuprate. The superconductivity (SC) in copper-oxide materials or the high-T c superconductivity (HTSC) is an extraordinary phenomenon. The cu...
متن کامل