Pairing transition in a double layer with interlayer Coulomb repulsion
Superconductivity
2020-07-22 v3 Strongly Correlated Electrons
Abstract
We study the effect of interlayer Coulomb interaction in an electronic double layer. Assuming that each of the layers consists of a bipartite lattice, a sufficiently strong interlayer interaction leads to an interlayer pairing of electrons with a staggered order parameter. We show that the correlated pairing state is dual to the excitonic pairing state with uniform order parameter in an electron-hole double layer. The interlayer pairing of electrons leads to strong current-current correlations between the layers. We also analyze the interlayer conductivity and the fluctuations of the order parameter, which consists of a gapped and a gapless mode.
Cite
@article{arxiv.1912.13257,
title = {Pairing transition in a double layer with interlayer Coulomb repulsion},
author = {Andreas Sinner and Yurii E. Lozovik and Klaus Ziegler},
journal= {arXiv preprint arXiv:1912.13257},
year = {2020}
}