New electromagnetic mode in graphene

Phys Rev Lett. 2007 Jul 6;99(1):016803. doi: 10.1103/PhysRevLett.99.016803. Epub 2007 Jul 6.


A new, weakly damped, transverse electromagnetic mode is predicted in graphene. The mode frequency omega lies in the window 1.667<[see text]omega/micro < 2, where micro is the chemical potential, and can be tuned from radio waves to the infrared by changing the density of charge carriers through a gate voltage.