We propose two coupled electron-hole sheets of few-layer graphene as a new nanostructure to observe superfluidity at enhanced densities and enhanced transition temperatures. For ABC stacked few-layer graphene we show that the strongly correlated electron-hole pairing regime is readily accessible experimentally using current technologies. We find for double trilayer and quadlayer graphene sheets spatially separated by a nano-thick hexagonal boron-nitride insulating barrier, that the transition temperature for electron-hole superfluidity can approach temperatures of 40 K.
@article{arxiv.1406.2471,
title = {Enhancement of electron-hole superfluidity in double few-layer graphene},
author = {M. Zarenia and A. Perali and D. Neilson and F. M. Peeters},
journal= {arXiv preprint arXiv:1406.2471},
year = {2014}
}