Enhanced electron-hole superfluidity in graphene systems

Date: 9 June 2016

Venue: University of Antwerp - Campus Groenenborger - Room U.244 - Groeneborgerlaan 171 - 2020 Antwerpen

Time: 2:00 PM - 3:00 PM

Organization / co-organization: Condensed Matter Theory

Short description: CMT seminar presented by Dr Mohammad Zarenia

Superfluidity of spatially separated electrons and holes was predicted nearly half of century ago. Despite long standing theoretical predictions and considerable experimental efforts such electron-hole superfluidity in double layered systems has not yet been observed in zero magnetic field.

In his talk, Mohammad Zarenia will first discuss on two coupled electron-hole sheets of few-layer graphene as a new nanostructure to observe superfluidity at enhanced densities and enhanced transition temperatures, i.e. about 40K in double trilayer and quad-layer graphene.

Next, he will present the recent results for two coupled electron-hole armchair graphene nanoribbons where we predicted an enhanced superfluidity thanks to the strong Coulomb interaction brought by the quantum confinement in quasi-one-dimensional graphene nanoribbons.

Dr Mohammad Zarenia, CMT group, UAntwerpen

Contact email: lucian.covaci@uantwerpen.be

Link: http://cmt.uantwerpen.be