Unconventional plasmon-phonon coupling in graphene
We predict the existence of coupled plasmon-phonon excitations in graphene by using the self-consistent linear response formalism. The unique electron-phonon interaction in graphene leads to unconventional mixing of plasmon and optical phonon polarizations. We find that longitudinal plasmons couple...
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Physical Society
2011
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| Online Access: | http://hdl.handle.net/1721.1/65867 https://orcid.org/0000-0002-7184-5831 |
| _version_ | 1826201671760347136 |
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| author | Jablan, Marinko Soljacic, Marin Buljan, Hrvoje |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Jablan, Marinko Soljacic, Marin Buljan, Hrvoje |
| author_sort | Jablan, Marinko |
| collection | MIT |
| description | We predict the existence of coupled plasmon-phonon excitations in graphene by using the self-consistent linear response formalism. The unique electron-phonon interaction in graphene leads to unconventional mixing of plasmon and optical phonon polarizations. We find that longitudinal plasmons couple exclusively to transverse optical phonons, whereas graphene’s transverse plasmons couple only to longitudinal optical phonons. This coupling can serve as a magnifier for exploring the electron-phonon interaction in graphene, and it offers electronical control over phonon frequencies. |
| first_indexed | 2024-09-23T11:55:17Z |
| format | Article |
| id | mit-1721.1/65867 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:55:17Z |
| publishDate | 2011 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/658672022-10-01T06:56:52Z Unconventional plasmon-phonon coupling in graphene Jablan, Marinko Soljacic, Marin Buljan, Hrvoje Massachusetts Institute of Technology. Department of Physics Soljacic, Marin Soljacic, Marin We predict the existence of coupled plasmon-phonon excitations in graphene by using the self-consistent linear response formalism. The unique electron-phonon interaction in graphene leads to unconventional mixing of plasmon and optical phonon polarizations. We find that longitudinal plasmons couple exclusively to transverse optical phonons, whereas graphene’s transverse plasmons couple only to longitudinal optical phonons. This coupling can serve as a magnifier for exploring the electron-phonon interaction in graphene, and it offers electronical control over phonon frequencies. Croatian Ministry of Science (Grant 119-0000000-1015) National Science Foundation (U.S.) (MRSEC program award DMR-0819762) United States. Dept. of Energy. S3TEC Energy Research Frontier Center (grant DESC0001299) 2011-09-16T15:37:13Z 2011-09-16T15:37:13Z 2011-04 2011-03 Article http://purl.org/eprint/type/JournalArticle 1098-0121 1550-235X http://hdl.handle.net/1721.1/65867 Jablan, Marinko, Marin Soljačić, and Hrvoje Buljan. “Unconventional Plasmon-phonon Coupling in Graphene.” Physical Review B 83.16 (2011) : 161409(R) ©2011 American Physical Society https://orcid.org/0000-0002-7184-5831 en_US http://dx.doi.org/10.1103/PhysRevB.83.161409 Physical Review B Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Jablan, Marinko Soljacic, Marin Buljan, Hrvoje Unconventional plasmon-phonon coupling in graphene |
| title | Unconventional plasmon-phonon coupling in graphene |
| title_full | Unconventional plasmon-phonon coupling in graphene |
| title_fullStr | Unconventional plasmon-phonon coupling in graphene |
| title_full_unstemmed | Unconventional plasmon-phonon coupling in graphene |
| title_short | Unconventional plasmon-phonon coupling in graphene |
| title_sort | unconventional plasmon phonon coupling in graphene |
| url | http://hdl.handle.net/1721.1/65867 https://orcid.org/0000-0002-7184-5831 |
| work_keys_str_mv | AT jablanmarinko unconventionalplasmonphononcouplingingraphene AT soljacicmarin unconventionalplasmonphononcouplingingraphene AT buljanhrvoje unconventionalplasmonphononcouplingingraphene |