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| (a) AFM phase image of graphene grown on SiC. (b) Time evolution of the plasmon signal. (c) Plasmon velocity as a function of the magnetic field. |
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| (a) AFM phase image of graphene grown on SiC. (b) Time evolution of the plasmon signal. (c) Plasmon velocity as a function of the magnetic field. |
Plasmon Transport in Graphene Investigated by Time-Resolved Electrical Measurements
We showed that the velocity of plasmons in graphene can be controlled over two orders of magnitude by applying the magnetic field, screening the plasmon electric field with a gate metal, and changing the carrier density. The wide tunability of the plasmon velocity encourages designing graphene nanostructures for plasmonic circuits. (Page 33)
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