Resonant electron-lattice cooling in graphene
Controlling energy flows in solids through switchable electron-lattice cooling can grant access to a range of interesting and potentially useful energy transport phenomena. Here we discuss a tunable electron-lattice cooling mechanism arising in graphene due to phonon emission mediated by resonant sc...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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American Physical Society
2018
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| Online Access: | http://hdl.handle.net/1721.1/116454 https://orcid.org/0000-0001-5980-4140 https://orcid.org/0000-0002-4268-731X |
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| author | Kong, Jian Feng Levitov, Leonid Halbertal, Dorri Zeldov, Eli |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Kong, Jian Feng Levitov, Leonid Halbertal, Dorri Zeldov, Eli |
| author_sort | Kong, Jian Feng |
| collection | MIT |
| description | Controlling energy flows in solids through switchable electron-lattice cooling can grant access to a range of interesting and potentially useful energy transport phenomena. Here we discuss a tunable electron-lattice cooling mechanism arising in graphene due to phonon emission mediated by resonant scattering on defects in a crystal lattice, which displays an interesting analogy to the Purcell effect in optics. In that, the electron-phonon cooling rate is enhanced due to hot carrier trapping at resonant defects. Resonant dependence of this process on carrier energy translates into gate-tunable cooling rates, exhibiting strong enhancement of cooling that occurs when the carrier energy is aligned with the electron resonance of the defect. |
| first_indexed | 2024-09-23T15:52:30Z |
| format | Article |
| id | mit-1721.1/116454 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T15:52:30Z |
| publishDate | 2018 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/1164542022-10-02T04:47:23Z Resonant electron-lattice cooling in graphene Kong, Jian Feng Levitov, Leonid Halbertal, Dorri Zeldov, Eli Massachusetts Institute of Technology. Department of Physics Kong, Jian Feng Levitov, Leonid Controlling energy flows in solids through switchable electron-lattice cooling can grant access to a range of interesting and potentially useful energy transport phenomena. Here we discuss a tunable electron-lattice cooling mechanism arising in graphene due to phonon emission mediated by resonant scattering on defects in a crystal lattice, which displays an interesting analogy to the Purcell effect in optics. In that, the electron-phonon cooling rate is enhanced due to hot carrier trapping at resonant defects. Resonant dependence of this process on carrier energy translates into gate-tunable cooling rates, exhibiting strong enhancement of cooling that occurs when the carrier energy is aligned with the electron resonance of the defect. 2018-06-20T17:59:51Z 2018-06-20T17:59:51Z 2018-06 2018-04 2018-06-19T18:00:25Z Article http://purl.org/eprint/type/JournalArticle 2469-9950 2469-9969 http://hdl.handle.net/1721.1/116454 Kong, Jian Feng et al. "Resonant electron-lattice cooling in graphene." Physical Review B 97, 24 (June 2018): 245416 © 2018 American Physical Society https://orcid.org/0000-0001-5980-4140 https://orcid.org/0000-0002-4268-731X en http://dx.doi.org/10.1103/PhysRevB.97.245416 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. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Kong, Jian Feng Levitov, Leonid Halbertal, Dorri Zeldov, Eli Resonant electron-lattice cooling in graphene |
| title | Resonant electron-lattice cooling in graphene |
| title_full | Resonant electron-lattice cooling in graphene |
| title_fullStr | Resonant electron-lattice cooling in graphene |
| title_full_unstemmed | Resonant electron-lattice cooling in graphene |
| title_short | Resonant electron-lattice cooling in graphene |
| title_sort | resonant electron lattice cooling in graphene |
| url | http://hdl.handle.net/1721.1/116454 https://orcid.org/0000-0001-5980-4140 https://orcid.org/0000-0002-4268-731X |
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