Chiral spin texture scenario for high-temperature superconductivity

Abstract

A unified picture describing several aspects of the physics of high-temperature superconductivity is proposed. Analysis of the non-linear sigma model suggests formation of a chiral spin texture creation around a hole through the formation of the Zhang–Rice singlet. The same spin texture is also formed in the t– J model by explicitly taking into account the local constraint. A system of the hole induced chiral spin textures naturally leads to a d-wave superconducting state. Numerical simulations suggest inhomogeneous chirality density profiles and incommensurate spin correlations in the moderately hole doping regime.