Finite temperature Casimir effect for graphene

Understand

We adopt the Dirac model for quasiparticles in graphene and calculate the finite temperature Casimir interaction between a suspended graphene layer and a parallel conducting surface.

• We find that at high temperature the Casimir interaction in such system is just one half of that for two ideal conductors separated by the same distance.
• In this limit single graphene layer behaves exactly as a Drude metal.
• In particular, the contribution of the TE mode is suppressed, while one of the TM mode saturates the ideal metal value.