Velocity renormalization and carrier lifetime in graphene from the electron-phonon interaction.
We present a first-principles investigation of the phonon-induced electron self-energy in graphene. The energy dependence of the self-energy reflects the peculiar linear band structure of graphene and deviates substantially from the usual metallic behavior. The effective band velocity of the Dirac f...
| Main Authors: | , , , |
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| Format: | Journal article |
| Sprog: | English |
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2007
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| _version_ | 1826276304603840512 |
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| author | Park, C Giustino, F Cohen, M Louie, S |
| author_facet | Park, C Giustino, F Cohen, M Louie, S |
| author_sort | Park, C |
| collection | OXFORD |
| description | We present a first-principles investigation of the phonon-induced electron self-energy in graphene. The energy dependence of the self-energy reflects the peculiar linear band structure of graphene and deviates substantially from the usual metallic behavior. The effective band velocity of the Dirac fermions is found to be reduced by 4%-8%, depending on doping, by the interaction with lattice vibrations. Our results are consistent with the observed linear dependence of the electronic linewidth on the binding energy in photoemission spectra. |
| first_indexed | 2024-03-06T23:11:56Z |
| format | Journal article |
| id | oxford-uuid:65c79774-e4a5-4f9c-b216-b4b9c66695ee |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T23:11:56Z |
| publishDate | 2007 |
| record_format | dspace |
| spelling | oxford-uuid:65c79774-e4a5-4f9c-b216-b4b9c66695ee2022-03-26T18:27:41ZVelocity renormalization and carrier lifetime in graphene from the electron-phonon interaction.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:65c79774-e4a5-4f9c-b216-b4b9c66695eeEnglishSymplectic Elements at Oxford2007Park, CGiustino, FCohen, MLouie, SWe present a first-principles investigation of the phonon-induced electron self-energy in graphene. The energy dependence of the self-energy reflects the peculiar linear band structure of graphene and deviates substantially from the usual metallic behavior. The effective band velocity of the Dirac fermions is found to be reduced by 4%-8%, depending on doping, by the interaction with lattice vibrations. Our results are consistent with the observed linear dependence of the electronic linewidth on the binding energy in photoemission spectra. |
| spellingShingle | Park, C Giustino, F Cohen, M Louie, S Velocity renormalization and carrier lifetime in graphene from the electron-phonon interaction. |
| title | Velocity renormalization and carrier lifetime in graphene from the electron-phonon interaction. |
| title_full | Velocity renormalization and carrier lifetime in graphene from the electron-phonon interaction. |
| title_fullStr | Velocity renormalization and carrier lifetime in graphene from the electron-phonon interaction. |
| title_full_unstemmed | Velocity renormalization and carrier lifetime in graphene from the electron-phonon interaction. |
| title_short | Velocity renormalization and carrier lifetime in graphene from the electron-phonon interaction. |
| title_sort | velocity renormalization and carrier lifetime in graphene from the electron phonon interaction |
| work_keys_str_mv | AT parkc velocityrenormalizationandcarrierlifetimeingraphenefromtheelectronphononinteraction AT giustinof velocityrenormalizationandcarrierlifetimeingraphenefromtheelectronphononinteraction AT cohenm velocityrenormalizationandcarrierlifetimeingraphenefromtheelectronphononinteraction AT louies velocityrenormalizationandcarrierlifetimeingraphenefromtheelectronphononinteraction |