Enhancement of electron-hole superfluidity in double few-layer graphene.

ABSTRACT: 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.

SUBMITTER: Zarenia M 

PROVIDER: S-EPMC4258647 | biostudies-literature | 2014 Dec

REPOSITORIES: biostudies-literature