Approaching the Dirac Point in High-Mobility Multilayer Epitaxial Graphene
Approaching the Dirac Point in High-Mobility Multilayer Epitaxial Graphene
Multilayer epitaxial graphene is investigated using far infrared transmission experiments in the different limits of low magnetic fields and high temperatures. The cyclotron-resonance-like absorption is observed at low temperature in magnetic fields below 50 mT, probing the nearest vicinity of the Dirac point. The carrier mobility is found to exceed …