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Pairing in the spin sector

Qiang-Hua Wang·Jung Hoon Han·Dung-Hai Lee
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Abstract

The nanometer-scale gap inhomogeneity revealed by recent STM images of BSCCO surface suggests that the ``gap coherence length'' is of that order. Thus a robust pairing gap can develop despite the poorly screened Coulomb interaction. This can be taken as an evidence that the pairing in high $T_c$ materials occurs primarily in the neutral (spin) sector. We provide theoretical support for this point of view.

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Qiang-Hua Wang, Jung Hoon Han, Dung-Hai Lee. 2001-06-04. Pairing in the spin sector. https://doi.org/10.1103/physrevb.65.054501

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