Quasiparticle interference on type-I and type-II Weyl semimetal surfaces: a review
Weyl semimetals are a new member of the topological materials family, featuring a pair of singly degenerate Weyl cones with linear dispersion around the nodes in the bulk, and Fermi arcs on the surface. Depending on whether the system conserves or violates Lorentz symmetry, Weyl semimetals can be ca...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2018-01-01
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| Series: | Advances in Physics: X |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/23746149.2018.1466661 |
| _version_ | 1819108638953832448 |
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| author | Hao Zheng M. Zahid Hasan |
| author_facet | Hao Zheng M. Zahid Hasan |
| author_sort | Hao Zheng |
| collection | DOAJ |
| description | Weyl semimetals are a new member of the topological materials family, featuring a pair of singly degenerate Weyl cones with linear dispersion around the nodes in the bulk, and Fermi arcs on the surface. Depending on whether the system conserves or violates Lorentz symmetry, Weyl semimetals can be categorized into two classes. Photoemission spectroscopy measurements have confirmed the TaAs class and WTe2 class of Weyl semimetals as type-I and type-II, respectively. This review article aims to elucidate and elaborate on the basic concepts of Weyl semimetals and quasiparticle interference experiments on both type-I and type-II Weyl semimetals. The versatile results which reveal (1) the topological sink effect of the surface carriers, the unique feature of the Fermi arc state; (2) the weakly bound nature of the Fermi arc surface state; (3) the orbital-dependent scattering channels on the surface; (4) a mirror symmetry-protected surface Dirac cone, are summarily discussed. Finally, a perspective toward the future applications of quasiparticle interference techniques on topological materials is presented. |
| first_indexed | 2024-12-22T03:13:07Z |
| format | Article |
| id | doaj.art-32b7bd6c05ba44f3907ab55b075a4740 |
| institution | Directory Open Access Journal |
| issn | 2374-6149 |
| language | English |
| last_indexed | 2024-12-22T03:13:07Z |
| publishDate | 2018-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Advances in Physics: X |
| spelling | doaj.art-32b7bd6c05ba44f3907ab55b075a47402022-12-21T18:40:53ZengTaylor & Francis GroupAdvances in Physics: X2374-61492018-01-013110.1080/23746149.2018.14666611466661Quasiparticle interference on type-I and type-II Weyl semimetal surfaces: a reviewHao Zheng0M. Zahid Hasan1Shanghai Jiao Tong UniversityPrinceton UniversityWeyl semimetals are a new member of the topological materials family, featuring a pair of singly degenerate Weyl cones with linear dispersion around the nodes in the bulk, and Fermi arcs on the surface. Depending on whether the system conserves or violates Lorentz symmetry, Weyl semimetals can be categorized into two classes. Photoemission spectroscopy measurements have confirmed the TaAs class and WTe2 class of Weyl semimetals as type-I and type-II, respectively. This review article aims to elucidate and elaborate on the basic concepts of Weyl semimetals and quasiparticle interference experiments on both type-I and type-II Weyl semimetals. The versatile results which reveal (1) the topological sink effect of the surface carriers, the unique feature of the Fermi arc state; (2) the weakly bound nature of the Fermi arc surface state; (3) the orbital-dependent scattering channels on the surface; (4) a mirror symmetry-protected surface Dirac cone, are summarily discussed. Finally, a perspective toward the future applications of quasiparticle interference techniques on topological materials is presented.http://dx.doi.org/10.1080/23746149.2018.1466661Weyl semimetalFermi arcscanning tunneling microscopyquasiparticle interference |
| spellingShingle | Hao Zheng M. Zahid Hasan Quasiparticle interference on type-I and type-II Weyl semimetal surfaces: a review Advances in Physics: X Weyl semimetal Fermi arc scanning tunneling microscopy quasiparticle interference |
| title | Quasiparticle interference on type-I and type-II Weyl semimetal surfaces: a review |
| title_full | Quasiparticle interference on type-I and type-II Weyl semimetal surfaces: a review |
| title_fullStr | Quasiparticle interference on type-I and type-II Weyl semimetal surfaces: a review |
| title_full_unstemmed | Quasiparticle interference on type-I and type-II Weyl semimetal surfaces: a review |
| title_short | Quasiparticle interference on type-I and type-II Weyl semimetal surfaces: a review |
| title_sort | quasiparticle interference on type i and type ii weyl semimetal surfaces a review |
| topic | Weyl semimetal Fermi arc scanning tunneling microscopy quasiparticle interference |
| url | http://dx.doi.org/10.1080/23746149.2018.1466661 |
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