A doping-dependent switch from one- to two-component superfluidity at temperature above 100K in coupled electron-hole Van der Waals heterostructures
Superconductivity
2020-07-01 v2 Mesoscale and Nanoscale Physics
Abstract
The hunt for high temperature superfluidity has received new impetus from the discovery of atomically thin stable materials. Electron-hole superfluidity in coupled MoSe2-WSe2 monolayers is investigated using a mean-field multiband model that includes the band splitting caused by the strong spin-orbit coupling. The splitting leads to a large energy misalignment of the electron and hole bands which can be markedly changed by interchanging the doping of the monolayers. The choice of doping determines if the superfluidity is tuneable from one- to two-components. The electron-hole pairing is strong, with high transition temperatures in excess of 100 K.
Keywords
Cite
@article{arxiv.1909.03411,
title = {A doping-dependent switch from one- to two-component superfluidity at temperature above 100K in coupled electron-hole Van der Waals heterostructures},
author = {Sara Conti and Matthias Van der Donck and Andrea Perali and Francois M. Peeters and David Neilson},
journal= {arXiv preprint arXiv:1909.03411},
year = {2020}
}