Superconductivity through Quantum Critical Fluctuations in the ...

s but simply characterized temperaturerties studied. Characteristic Fermi-liquidregion (II) an anisotropic gap (pseudoicalpotential is observed. Transport [?]racteristic changes below the line T p (x).erties across di erent lines also occur. Itnd the universal properties.Experiments consistent with this long-range order.This order has been observed in four distinct families ofCuprates by Polarized Neutron scattering or by DichroicARPES.YBa(2)Cu(3)O(6+x)Bi2212HgBaCuOLSCO:IIIFermi liquidCrossoverx (doping)Temperature (K)4003002001000T (K)and discussed further belowHg1201 are in good agreem400 in Figs. 1-5 demonstrate tha300netic signal belowysis method.T mag is inIt is furtherm200100crease of T ⇤ toward higher hoappearance of the pseudogapdoping. Moreover, as alread00.05 0.1 0.15 0.2p0.05 0.1 0.15 0.2Hole doping player YBCO. 3,4,9 . These releast in compounds with higpseudogap phenomenon is aa mere crossover.In Ref. 4 an attempt wascal exponent of the transitiothat the fit value depends otrinsic temperature dependenconsidered in comparisons wof 2 =0.37±0.12 is consiste5). The uncertainty in the