Stripe like inhomogeneities, spectroscopies, pairing and coherence in the high Tc cuprates Original Research Article

It is found that the carriers of the high-Tc cuprates are polaron-like ‘stripons’ carrying charge and located in stripe-like inhomogeneities, ‘quasi-electrons’ carrying charge and spin, and ‘svivons’ carrying spin and lattice distortion. This is shown to result in the observed anomalous spectroscopic properties of the cuprates. The AF/stripe-like inhomogeneities result from the Bose condensation of the svivon field, and the speed of their dynamics is determined by the width of the double-svivon neutron-resonance peak. Pairing results from transitions between pair states of stripons and quasi-electrons through the exchange of svivons. The obtained pairing symmetry is of the dx2−y2 type; however, sign reversal through the charged stripes results in features not characteristic of this symmetry. The phase diagram is determined by a pairing and a coherence line, associated with a Mott transition, and the pseudogap state corresponds to incoherent pairing.