Mechanism of d_{x^2-y^2}-wave superconductivity based on doped hole induced spin texture in high T_c cuprates

TL;DR

This paper proposes a new mechanism for high-temperature superconductivity in cuprates, where doped holes induce spin textures that facilitate d_{x^2-y^2}-wave pairing through magnetic interactions, with potential p-wave components.

Contribution

It introduces a novel spin texture-based pairing mechanism driven by doped holes and explores its stability and anisotropic effects in high-T_c cuprates.

Findings

Doped holes induce spin textures with non-zero topological density.

The pairing interaction is mediated by a magnetic Lorentz force-like interaction.

The mechanism predicts the emergence of p-wave pairing components under anisotropic conditions.

Abstract

A mechanism of d_{x^2-y^2}-wave superconductivity is proposed for the high-T_c cuprates based on a spin texture with non-zero topological density induced by doped holes through Zhang-Rice singlet formation. The pairing interaction arises from the magnetic Lorentz force like interaction between the holes and the spin textures. The stability of the pairing state against the vortex-vortex interaction and the Coulomb repulsion is examined. The mechanism suggests appearance of a p-wave pairing component by introducing anisotropy in the CuO_2 plane.