Pairing Symmetry, Spin-Gap and more in HTSC Cuprates

TL;DR

This paper investigates the pairing symmetry and spin-gap phenomena in high-temperature cuprate superconductors, providing theoretical insights that align with experimental observations of magnetic and electronic properties.

Contribution

It introduces a model based on double correlated hole aggregations and confirms the d-wave pairing symmetry and spin-gap features observed experimentally.

Findings

Pairing symmetry is d(x*x - y*y).

Existence of a superconductive spin gap.

Reanalysis and modification of the unperturbed Hamiltonian.

Abstract

This work is based on the double correlated linear aggregations of holes in checkerboard geometry. It is proved that the pairing function symmetry is - d(x*x-y*y), as been observed experimentally. It is also shown that there is a "superconductive spin gap" for the observation of the magnetic incommensurate modulation peaks, in agreement with experiment. In addition, the unperturbed Hamiltonian is reanalyzed and modified.