Underlying Pairing States in Cuprate Superconductors
Wei-Min Zhang (NCKU, Taiwan)
TL;DR
This paper develops a microscopic theory explaining the coexistence of antiferromagnetic and d-wave superconducting orders in cuprates through a coherent pairing state framework.
Contribution
It introduces a novel microscopic model that captures both AF and dSC orders using a unified pairing state approach in cuprate superconductors.
Findings
Coherent pairing states include extended singlet and triplet pairs.
The model explains the close proximity of AF and dSC phases.
Unified description of AF and dSC orders in cuprates.
Abstract
In this Letter, we develop a microscopic theory to describe the close proximity between the insulating antiferromagnetic (AF) order and the d-wave superconducting (dSC) order in cuprates. We show that the cuprate ground states form a configuration of coherent pairing states consisting of extended singlet Cooper pairs and triplet pairs, which can simultaneously describe AF and dSC orders.
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