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arXiv · 1701.03386

Nodal and nodeless gap in proximity induced superconductivity: application to monolayer CuO$_2$ on BSCCO substrate

Yimeng Wang·Zhen-Hua Wang·Wei-Qiang Chen
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Abstract

We present a detailed analysis on the hopping between monolayer CuO$_2$ and bulk CuO$_2$ plane in the Bi$_2$Sr$_2$CaCu$_2$O$_{8+δ}$ substrate. With a two-band model, we demonstrate that the nodeless gap can only exist when the hole concentration in monolayer CuO$_2$ plane is very large or very small. We argued that the possible phase separation may play important role in the recent experimental observation of nodeless gap.

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Yimeng Wang, Zhen-Hua Wang, Wei-Qiang Chen. 2017-09-01. Nodal and nodeless gap in proximity induced superconductivity: application to monolayer CuO$_2$ on BSCCO substrate. https://doi.org/10.1103/physrevb.96.104507

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