d-Wave Pairing State in Terms of the Zhang-Rice Singlets

Akinori Tanaka

doi:10.1088/1751-8113/40/34/002

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arXiv · 0704.3610

d-Wave Pairing State in Terms of the Zhang-Rice Singlets

Akinori Tanaka

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Abstract

In cuprate superconductors doping is believed to create holes on the O-sites, which couple antiferromagnetically with holes on the Cu-sites to form the so-called Zhang-Rice singlets. Here we study a d-wave pairing state based on the Zhang-Rice singlet states. Upper and lower bounds of an off-diagonal long-range order parameter with d-wave symmetry for this state are estimated. We also introduce a concrete model with on-site Coulomb repulsion and kinds of antiferromagnetic interactions whose ground state is this d-wave pairing state.

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Akinori Tanaka. 2007-07-17. d-Wave Pairing State in Terms of the Zhang-Rice Singlets. https://doi.org/10.1088/1751-8113/40/34/002

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