Observation of a thermoelectric Hall plateau in the extreme quantum limit
The thermoelectric Hall effect is the generation of a transverse heat current upon applying an electric field in the presence of a magnetic field. Here, we demonstrate that the thermoelectric Hall conductivity αxy in the three-dimensional Dirac semimetal ZrTe5 acquires a robust plateau in the extrem...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Springer Science and Business Media LLC
2020
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| Online Access: | https://hdl.handle.net/1721.1/128682 |
| _version_ | 1826211216115105792 |
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| author | Skinner, Brian J Kozii, Vladyslav Fu, Liang |
| author2 | Massachusetts Institute of Technology. Research Laboratory of Electronics |
| author_facet | Massachusetts Institute of Technology. Research Laboratory of Electronics Skinner, Brian J Kozii, Vladyslav Fu, Liang |
| author_sort | Skinner, Brian J |
| collection | MIT |
| description | The thermoelectric Hall effect is the generation of a transverse heat current upon applying an electric field in the presence of a magnetic field. Here, we demonstrate that the thermoelectric Hall conductivity αxy in the three-dimensional Dirac semimetal ZrTe5 acquires a robust plateau in the extreme quantum limit of magnetic field. The plateau value is independent of the field strength, disorder strength, carrier concentration, or carrier sign. We explain this plateau theoretically and show that it is a unique signature of three-dimensional Dirac or Weyl electrons in the extreme quantum limit. We further find that other thermoelectric coefficients, such as the thermopower and Nernst coefficient, are greatly enhanced over their zero-field values even at relatively low fields. |
| first_indexed | 2024-09-23T15:02:43Z |
| format | Article |
| id | mit-1721.1/128682 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T15:02:43Z |
| publishDate | 2020 |
| publisher | Springer Science and Business Media LLC |
| record_format | dspace |
| spelling | mit-1721.1/1286822022-09-29T12:16:28Z Observation of a thermoelectric Hall plateau in the extreme quantum limit Skinner, Brian J Kozii, Vladyslav Fu, Liang Massachusetts Institute of Technology. Research Laboratory of Electronics Massachusetts Institute of Technology. Department of Physics The thermoelectric Hall effect is the generation of a transverse heat current upon applying an electric field in the presence of a magnetic field. Here, we demonstrate that the thermoelectric Hall conductivity αxy in the three-dimensional Dirac semimetal ZrTe5 acquires a robust plateau in the extreme quantum limit of magnetic field. The plateau value is independent of the field strength, disorder strength, carrier concentration, or carrier sign. We explain this plateau theoretically and show that it is a unique signature of three-dimensional Dirac or Weyl electrons in the extreme quantum limit. We further find that other thermoelectric coefficients, such as the thermopower and Nernst coefficient, are greatly enhanced over their zero-field values even at relatively low fields. National Key Basic Research Program of China (Grant 016YFA0300600) National Science Foundation (U.S.) (Grants 11574005 and 11774009) Guangdong Innovative andEntrepreneurial Research Team Program (Grant 016ZT06D348) National Fire Safety Council (Grant 11874193) Shenzhen Fundamental subject research Program (JCYJ20170817110751776) Innovation Commission of Shenzhen Municipality (Grant KQTD2016022619565991) United States. Department of Energy. Division of Materials Sciences and Engineering (Award DE-SC0018945) National Science Foundation (U.S.). Science and Technology Center (Agreement DMR-1231319) United States. Department of Energy (Contract DE-AC02-05CH11231) United States. Department of Energy. Office of Basic Energy Sciences ( Contract DE-SC0012704) 2020-11-30T16:57:17Z 2020-11-30T16:57:17Z 2020-02 2020-10-23T17:10:24Z Article http://purl.org/eprint/type/JournalArticle 2041-1723 https://hdl.handle.net/1721.1/128682 Zhang, Wenjie et al. “Observation of a thermoelectric Hall plateau in the extreme quantum limit.” Nature Communications, 11, 1 (February 2020): article 1046 © 2020 The Author(s) en 10.1038/S41467-020-14819-7 Nature Communications Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Springer Science and Business Media LLC Nature |
| spellingShingle | Skinner, Brian J Kozii, Vladyslav Fu, Liang Observation of a thermoelectric Hall plateau in the extreme quantum limit |
| title | Observation of a thermoelectric Hall plateau in the extreme quantum limit |
| title_full | Observation of a thermoelectric Hall plateau in the extreme quantum limit |
| title_fullStr | Observation of a thermoelectric Hall plateau in the extreme quantum limit |
| title_full_unstemmed | Observation of a thermoelectric Hall plateau in the extreme quantum limit |
| title_short | Observation of a thermoelectric Hall plateau in the extreme quantum limit |
| title_sort | observation of a thermoelectric hall plateau in the extreme quantum limit |
| url | https://hdl.handle.net/1721.1/128682 |
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