Room-Temperature Superfluidity in Graphene Bilayers

TL;DR

This paper suggests that graphene bilayers could exhibit superfluidity at near room temperature due to electron-hole pair condensation, making them promising for high-temperature superfluid applications.

Contribution

It provides estimates indicating that Kosterlitz-Thouless transition temperatures in graphene bilayers can reach room temperature, highlighting a potential breakthrough in superfluid research.

Findings

Kosterlitz-Thouless temperatures can approach room temperature in graphene bilayers.

Graphene bilayers are promising candidates for high-temperature superfluidity.

Electron-hole pair condensation is feasible at elevated temperatures.

Abstract

Because graphene is an atomically two-dimensional gapless semiconductor with nearly identical conduction and valence bands, graphene-based bilayers are attractive candidates for high-temperature electron-hole pair condensation. We present estimates which suggest that the Kosterlitz-Thouless temperatures of these two-dimensional counterflow superfluids can approach room temperature.