TunableWeyl fermions and Fermi arcs in magnetized topological crystalline insulators
Based on k · p analysis and realistic tight-binding calculations, we find that time-reversal-breaking Weyl semimetals can be realized in magnetically-doped (Mn, Eu, Cr, etc.) Sn1-xPbx (Te, Se) class of topological crystalline insulators. All theWeyl points are well separated in momentum space and po...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2020
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| Online Access: | https://hdl.handle.net/1721.1/128690 |
| _version_ | 1811077362914164736 |
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| author | Liu, Junwei Fang, Chen Fu, Liang |
| author2 | MIT Materials Research Laboratory |
| author_facet | MIT Materials Research Laboratory Liu, Junwei Fang, Chen Fu, Liang |
| author_sort | Liu, Junwei |
| collection | MIT |
| description | Based on k · p analysis and realistic tight-binding calculations, we find that time-reversal-breaking Weyl semimetals can be realized in magnetically-doped (Mn, Eu, Cr, etc.) Sn1-xPbx (Te, Se) class of topological crystalline insulators. All theWeyl points are well separated in momentum space and possess nearly the same energy due to high crystalline symmetry. Moreover, both the Weyl points and Fermi arcs are highly tunable by varying Pb/Sn composition, pressure, magnetization, temperature, surface potential, etc., opening up the possibility of manipulating Weyl points and rewiring the Fermi arcs. |
| first_indexed | 2024-09-23T10:41:45Z |
| format | Article |
| id | mit-1721.1/128690 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T10:41:45Z |
| publishDate | 2020 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/1286902022-09-30T22:21:33Z TunableWeyl fermions and Fermi arcs in magnetized topological crystalline insulators Liu, Junwei Fang, Chen Fu, Liang MIT Materials Research Laboratory Massachusetts Institute of Technology. Department of Physics Based on k · p analysis and realistic tight-binding calculations, we find that time-reversal-breaking Weyl semimetals can be realized in magnetically-doped (Mn, Eu, Cr, etc.) Sn1-xPbx (Te, Se) class of topological crystalline insulators. All theWeyl points are well separated in momentum space and possess nearly the same energy due to high crystalline symmetry. Moreover, both the Weyl points and Fermi arcs are highly tunable by varying Pb/Sn composition, pressure, magnetization, temperature, surface potential, etc., opening up the possibility of manipulating Weyl points and rewiring the Fermi arcs. National Science Foundation (U.S.) (award DMR-1419807) United States. Department of Energy. Division of Materials Sciences and Engineering (Award de-sc0010526) 2020-11-30T19:03:53Z 2020-11-30T19:03:53Z 2016-04 2020-10-23T16:57:00Z Article http://purl.org/eprint/type/JournalArticle 1674-1056 https://hdl.handle.net/1721.1/128690 Liu, Junwei, Chen Fang, and Liang Fu. “TunableWeyl fermions and Fermi arcs in magnetized topological crystalline insulators.” Chinese Physics B, 28, 4 (April 2016) © 2016 The Author(s) en 10.1088/1674-1056/28/4/047301 Chinese Physics B Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf IOP Publishing arXiv |
| spellingShingle | Liu, Junwei Fang, Chen Fu, Liang TunableWeyl fermions and Fermi arcs in magnetized topological crystalline insulators |
| title | TunableWeyl fermions and Fermi arcs in magnetized topological crystalline insulators |
| title_full | TunableWeyl fermions and Fermi arcs in magnetized topological crystalline insulators |
| title_fullStr | TunableWeyl fermions and Fermi arcs in magnetized topological crystalline insulators |
| title_full_unstemmed | TunableWeyl fermions and Fermi arcs in magnetized topological crystalline insulators |
| title_short | TunableWeyl fermions and Fermi arcs in magnetized topological crystalline insulators |
| title_sort | tunableweyl fermions and fermi arcs in magnetized topological crystalline insulators |
| url | https://hdl.handle.net/1721.1/128690 |
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