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Intrinsic Terahertz Plasmons and Magnetoplasmons in Large Scale Monolayer Graphene

Orlita, M.
Potemski, M.
Walter, A. L.
Ostler, M.
Seyller, Th.
Chen, J.
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Published in Nano Letters. 2012, vol. 12, no. 5, p. 2470-2474
Abstract We show that in graphene epitaxially grown on SiC the Drude absorption is transformed into a strong terahertz plasmonic peak due to natural nanoscale inhomogeneities, such as substrate terraces and wrinkles. The excitation of the plasmon modifies dramatically the magneto-optical response and in particular the Faraday rotation. This makes graphene a unique playground for plasmon-controlled magneto-optical phenomena thanks to a cyclotron mass 2 orders of magnitude smaller than in conventional plasmonic materials such as noble metals.
Keywords GrapheneTerahertzMagneto-opticsMagnetoplasmonsFaraday rotation
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CRASSEE, Iris et al. Intrinsic Terahertz Plasmons and Magnetoplasmons in Large Scale Monolayer Graphene. In: Nano Letters, 2012, vol. 12, n° 5, p. 2470-2474. https://archive-ouverte.unige.ch/unige:38710

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Deposited on : 2014-07-15

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