Disorder-Assisted Electron-Phonon Scattering and Cooling Pathways in Graphene
We predict that graphene is a unique system where disorder-assisted scattering (supercollisions) dominates electron-lattice cooling over a wide range of temperatures, up to room temperature. This is so because for momentum-conserving electron-phonon scattering the energy transfer per collision is se...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Physical Society
2012
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| Online Access: | http://hdl.handle.net/1721.1/73875 https://orcid.org/0000-0002-4268-731X |
| _version_ | 1811092503588241408 |
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| author | Song, Justin Chien Wen Reizer, Michael Y. Levitov, Leonid |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Song, Justin Chien Wen Reizer, Michael Y. Levitov, Leonid |
| author_sort | Song, Justin Chien Wen |
| collection | MIT |
| description | We predict that graphene is a unique system where disorder-assisted scattering (supercollisions) dominates electron-lattice cooling over a wide range of temperatures, up to room temperature. This is so because for momentum-conserving electron-phonon scattering the energy transfer per collision is severely constrained due to a small Fermi surface size. The characteristic T[superscript 3] temperature dependence and power-law cooling dynamics provide clear experimental signatures of this new cooling mechanism. The cooling rate can be changed by orders of magnitude by varying the amount of disorder providing means for a variety of new applications that rely on hot-carrier transport. |
| first_indexed | 2024-09-23T15:19:14Z |
| format | Article |
| id | mit-1721.1/73875 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:19:14Z |
| publishDate | 2012 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/738752022-10-02T02:08:31Z Disorder-Assisted Electron-Phonon Scattering and Cooling Pathways in Graphene Song, Justin Chien Wen Reizer, Michael Y. Levitov, Leonid Massachusetts Institute of Technology. Department of Physics Song, Justin Chien Wen Levitov, Leonid We predict that graphene is a unique system where disorder-assisted scattering (supercollisions) dominates electron-lattice cooling over a wide range of temperatures, up to room temperature. This is so because for momentum-conserving electron-phonon scattering the energy transfer per collision is severely constrained due to a small Fermi surface size. The characteristic T[superscript 3] temperature dependence and power-law cooling dynamics provide clear experimental signatures of this new cooling mechanism. The cooling rate can be changed by orders of magnitude by varying the amount of disorder providing means for a variety of new applications that rely on hot-carrier transport. United States. Office of Naval Research (Grant N00014-09-1- 0724) 2012-10-11T14:52:21Z 2012-10-11T14:52:21Z 2012-09 2012-03 Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/73875 Song, Justin, Michael Reizer, and Leonid Levitov. “Disorder-Assisted Electron-Phonon Scattering and Cooling Pathways in Graphene.” Physical Review Letters 109.10 (2012). © 2012 American Physical Society https://orcid.org/0000-0002-4268-731X en_US http://dx.doi.org/10.1103/PhysRevLett.109.106602 Physical Review Letters 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 | Song, Justin Chien Wen Reizer, Michael Y. Levitov, Leonid Disorder-Assisted Electron-Phonon Scattering and Cooling Pathways in Graphene |
| title | Disorder-Assisted Electron-Phonon Scattering and Cooling Pathways in Graphene |
| title_full | Disorder-Assisted Electron-Phonon Scattering and Cooling Pathways in Graphene |
| title_fullStr | Disorder-Assisted Electron-Phonon Scattering and Cooling Pathways in Graphene |
| title_full_unstemmed | Disorder-Assisted Electron-Phonon Scattering and Cooling Pathways in Graphene |
| title_short | Disorder-Assisted Electron-Phonon Scattering and Cooling Pathways in Graphene |
| title_sort | disorder assisted electron phonon scattering and cooling pathways in graphene |
| url | http://hdl.handle.net/1721.1/73875 https://orcid.org/0000-0002-4268-731X |
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