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Infrared Spectroscopy of Tunable Dirac Terahertz Magneto-Plasmons in Graphene
Open accessAbstract
We present infrared spectroscopy study of plasmon excitations in graphene in high magnetic fields. The plasmon resonance in patterned graphene disks splits into edge and bulk plasmon modes in magnetic fields. Remarkably, the edge plasmons develop increasingly longer lifetimes in high fields due to the suppression of backscattering. Moreover, due to the linear band structure of graphene, the splitting of the edge and bulk plasmon modes develops a strong doping dependence, which differs from the behavior of conventional semiconductor two-dimensional electron gas (2DEG) systems. We also observe the appearance of a higher order mode indicating an anharmonic confinement potential even in these well-defined circular disks. Our work not only opens an avenue for the investigation of the properties of Dirac magnetoplasmons but also supports the great potential of graphene for tunable terahertz magneto-optical devices.
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Cites
Two-dimensional gas of massless Dirac fermions in graphene
Novoselov, K. S., Geim, A. K., Morozov, S. V., Jiang, D., Katsnelson, M. I., Grigorieva, I. V., Dubonos, S. V., & Firsov, A. A. (2005) · Nature · doi:10.1038/nature04233 · Cited by 21,611
Experimental observation of the quantum Hall effect and Berry's phase in graphene
Zhang, Y., Tan, Y.-W., Stormer, H. L., & Kim, P. (2005) · Nature · doi:10.1038/nature04235 · Cited by 13,435
Landau Level Spectroscopy of Ultrathin Graphite Layers
Sadowski, M. L., Martinez, G., Potemski, M., Berger, C., & de Heer, W. A. (2006) · Physical Review Letters · doi:10.1103/physrevlett.97.266405 · Cited by 593
Cited by
Graphene Plasmonics: Challenges and Opportunities
García de Abajo, F. J. (2014) · ACS Photonics · doi:10.1021/ph400147y · Cited by 1,254
Damping pathways of mid-infrared plasmons in graphene nanostructures
Yan, H., Low, T., Zhu, W., Wu, Y., Freitag, M., Li, X., Guinea, F., Avouris, P., & Xia, F. (2013) · Nature Photonics · doi:10.1038/nphoton.2013.57 · Cited by 965
Self-citationMatter manipulation with extreme terahertz light: Progress in the enabling THz technology
Salén, P., Basini, M., Bonetti, S., Hebling, J., Krasilnikov, M., Nikitin, A. Y., Shamuilov, G., Tibai, Z., Zhaunerchyk, V., & Goryashko, V. (2019) · Physics Reports · doi:10.1016/j.physrep.2019.09.002 · Cited by 262
Jin, D., Lu, L., Wang, Z., Fang, C., Joannopoulos, J. D., Soljačić, M., Fu, L., & Fang, N. X. (2016) · Nature Communications · doi:10.1038/ncomms13486 · Cited by 141
Metadata
- Authors
- Yan, H., Li, Z., Li, X., Zhu, W., Avouris, P., & Xia, F.
- Venue
- Nano Letters
- Publisher
- American Chemical Society (ACS)
- Published
- 2012-06-13
- Volume
- 12
- Issue
- 7
- Pages
- 3766-3771
- ISSN
- 1530-6984 (ISSN-L)
- 1530-6992
- OpenAlex
- W193405515
- Cited by
- 281
- References
- 3
- FWCI
- 14.82
- Type
- journal article
- Language
- en
- Open access
- green
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- Yan, H., Li, Z., Li, X., Zhu, W., Avouris, P., & Xia, F. (2012). Infrared Spectroscopy of Tunable Dirac Terahertz Magneto-Plasmons in Graphene. Nano Letters. https://doi.org/10.1021/nl3016335
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