Nonperturbative Quantum Nature of the Dislocation–Phonon Interaction
Despite the long history of dislocation-phonon interaction studies, there are many problems that have not been fully resolved during this development. These include an incompatibility between a perturbative approach and the long-range nature of a dislocation, the relation between static and dynamic...
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American Chemical Society (ACS)
2018
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| Online Access: | http://hdl.handle.net/1721.1/119021 https://orcid.org/0000-0002-7055-6368 https://orcid.org/0000-0002-2612-7750 https://orcid.org/0000-0002-9872-5688 https://orcid.org/0000-0002-4911-3183 https://orcid.org/0000-0001-8492-2261 https://orcid.org/0000-0002-3968-8530 |
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| author | Meng, Qingping Zhu, Yimei Li, Mingda Ding, Zhiwei Zhou, Jiawei Liu, Hong Dresselhaus, Mildred Chen, Gang |
| author2 | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science |
| author_facet | Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Meng, Qingping Zhu, Yimei Li, Mingda Ding, Zhiwei Zhou, Jiawei Liu, Hong Dresselhaus, Mildred Chen, Gang |
| author_sort | Meng, Qingping |
| collection | MIT |
| description | Despite the long history of dislocation-phonon interaction studies, there are many problems that have not been fully resolved during this development. These include an incompatibility between a perturbative approach and the long-range nature of a dislocation, the relation between static and dynamic scattering, and their capability of dealing with thermal transport phenomena for bulk material only. Here by utilizing a fully quantized dislocation field, which we called a “dislon”, a phonon interacting with a dislocation is renormalized as a quasi-phonon, with shifted quasi-phonon energy, and accompanied by a finite quasi-phonon lifetime, which are reducible to classical results. A series of outstanding legacy issues including those above can be directly explained within this unified phonon renormalization approach. For instance, a renormalized phonon naturally resolves the decade-long debate between dynamic and static dislocation-phonon scattering approaches, as two limiting cases. In particular, at nanoscale, both the dynamic and static approaches break down, while the present renormalization approach remains valid by capturing the size effect, showing good agreement with lattice dynamics simulations. Keywords: Dislocations; dislocation−phonon interaction; effective field theory; phonon transport; renormalization; thermal conductivity |
| first_indexed | 2024-09-23T13:27:37Z |
| format | Article |
| id | mit-1721.1/119021 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T13:27:37Z |
| publishDate | 2018 |
| publisher | American Chemical Society (ACS) |
| record_format | dspace |
| spelling | mit-1721.1/1190212022-09-28T14:24:36Z Nonperturbative Quantum Nature of the Dislocation–Phonon Interaction Nonperturbative Quantum Nature of the Dislocation–Phonon Interaction Meng, Qingping Zhu, Yimei Li, Mingda Ding, Zhiwei Zhou, Jiawei Liu, Hong Dresselhaus, Mildred Chen, Gang Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology. Department of Mechanical Engineering Massachusetts Institute of Technology. Department of Physics Li, Mingda Ding, Zhiwei Zhou, Jiawei Liu, Hong Dresselhaus, Mildred Chen, Gang Despite the long history of dislocation-phonon interaction studies, there are many problems that have not been fully resolved during this development. These include an incompatibility between a perturbative approach and the long-range nature of a dislocation, the relation between static and dynamic scattering, and their capability of dealing with thermal transport phenomena for bulk material only. Here by utilizing a fully quantized dislocation field, which we called a “dislon”, a phonon interacting with a dislocation is renormalized as a quasi-phonon, with shifted quasi-phonon energy, and accompanied by a finite quasi-phonon lifetime, which are reducible to classical results. A series of outstanding legacy issues including those above can be directly explained within this unified phonon renormalization approach. For instance, a renormalized phonon naturally resolves the decade-long debate between dynamic and static dislocation-phonon scattering approaches, as two limiting cases. In particular, at nanoscale, both the dynamic and static approaches break down, while the present renormalization approach remains valid by capturing the size effect, showing good agreement with lattice dynamics simulations. Keywords: Dislocations; dislocation−phonon interaction; effective field theory; phonon transport; renormalization; thermal conductivity United States. Department of Energy (Contract DE-SC0012567) 2018-11-15T14:43:11Z 2018-11-15T14:43:11Z 2017-03 2016-11 2018-11-07T18:33:12Z Article http://purl.org/eprint/type/JournalArticle 1530-6984 1530-6992 http://hdl.handle.net/1721.1/119021 Li, Mingda et al. “Nonperturbative Quantum Nature of the Dislocation–Phonon Interaction.” Nano Letters 17, 3 (February 2017): 1587–1594 © 2017 American Chemical Society https://orcid.org/0000-0002-7055-6368 https://orcid.org/0000-0002-2612-7750 https://orcid.org/0000-0002-9872-5688 https://orcid.org/0000-0002-4911-3183 https://orcid.org/0000-0001-8492-2261 https://orcid.org/0000-0002-3968-8530 http://dx.doi.org/10.1021/ACS.NANOLETT.6B04756 Nano 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 Chemical Society (ACS) arXiv |
| spellingShingle | Meng, Qingping Zhu, Yimei Li, Mingda Ding, Zhiwei Zhou, Jiawei Liu, Hong Dresselhaus, Mildred Chen, Gang Nonperturbative Quantum Nature of the Dislocation–Phonon Interaction |
| title | Nonperturbative Quantum Nature of the Dislocation–Phonon Interaction |
| title_full | Nonperturbative Quantum Nature of the Dislocation–Phonon Interaction |
| title_fullStr | Nonperturbative Quantum Nature of the Dislocation–Phonon Interaction |
| title_full_unstemmed | Nonperturbative Quantum Nature of the Dislocation–Phonon Interaction |
| title_short | Nonperturbative Quantum Nature of the Dislocation–Phonon Interaction |
| title_sort | nonperturbative quantum nature of the dislocation phonon interaction |
| url | http://hdl.handle.net/1721.1/119021 https://orcid.org/0000-0002-7055-6368 https://orcid.org/0000-0002-2612-7750 https://orcid.org/0000-0002-9872-5688 https://orcid.org/0000-0002-4911-3183 https://orcid.org/0000-0001-8492-2261 https://orcid.org/0000-0002-3968-8530 |
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