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Article: Tunable double Weyl phonons driven by chiral point group symmetry
Title | Tunable double Weyl phonons driven by chiral point group symmetry |
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Authors | |
Issue Date | 2021 |
Publisher | American Physical Society. The Journal's web site is located at http://journals.aps.org/prb/ |
Citation | Physical Review B: covering condensed matter and materials physics, 2021, v. 103 n. 10, p. article no. 104101 How to Cite? |
Abstract | Different from spin-12 Weyl points which are robust due to the protection of topology, the unconventional chiral quasiparticles usually require extra crystalline symmetries for their existence, indicating that such quasiparticles are sensitive to perturbation. Herein, we present that the spin-1 Weyl can transform into quadratic Weyl phonons depending on symmetry variation. Specifically, the spin-1 Weyl nodes arisen from three-dimensional (3D) irreducible representations (IRs) of chiral point groups, O(432) or T(23), are verified to split into quadratic Weyl points if symmetry breaking decomposes 3D IRs into two-dimensional IRs. Symmetry analysis and low-energy effective models are performed to identify the splitting mechanisms. The evolution of Berry curvature and surface states driven by symmetry breaking is obtained in real materials. Our work not only builds the connection between double Weyl phonons but also offers guidance for exploring the transition among unconventional quasiparticles. © 2021 American Physical Society. |
Persistent Identifier | http://hdl.handle.net/10722/299113 |
ISSN | 2021 Impact Factor: 3.908 2020 SCImago Journal Rankings: 1.780 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | JIN, YJ | - |
dc.contributor.author | Chen, ZJ | - |
dc.contributor.author | Xiao, XL | - |
dc.contributor.author | Xu, H | - |
dc.date.accessioned | 2021-04-28T02:26:21Z | - |
dc.date.available | 2021-04-28T02:26:21Z | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | Physical Review B: covering condensed matter and materials physics, 2021, v. 103 n. 10, p. article no. 104101 | - |
dc.identifier.issn | 2469-9950 | - |
dc.identifier.uri | http://hdl.handle.net/10722/299113 | - |
dc.description.abstract | Different from spin-12 Weyl points which are robust due to the protection of topology, the unconventional chiral quasiparticles usually require extra crystalline symmetries for their existence, indicating that such quasiparticles are sensitive to perturbation. Herein, we present that the spin-1 Weyl can transform into quadratic Weyl phonons depending on symmetry variation. Specifically, the spin-1 Weyl nodes arisen from three-dimensional (3D) irreducible representations (IRs) of chiral point groups, O(432) or T(23), are verified to split into quadratic Weyl points if symmetry breaking decomposes 3D IRs into two-dimensional IRs. Symmetry analysis and low-energy effective models are performed to identify the splitting mechanisms. The evolution of Berry curvature and surface states driven by symmetry breaking is obtained in real materials. Our work not only builds the connection between double Weyl phonons but also offers guidance for exploring the transition among unconventional quasiparticles. © 2021 American Physical Society. | - |
dc.language | eng | - |
dc.publisher | American Physical Society. The Journal's web site is located at http://journals.aps.org/prb/ | - |
dc.relation.ispartof | Physical Review B: covering condensed matter and materials physics | - |
dc.rights | Copyright [2021] by The American Physical Society. This article is available online at [http://dx.doi.org/10.1103/PhysRevB.103.104101]. | - |
dc.title | Tunable double Weyl phonons driven by chiral point group symmetry | - |
dc.type | Article | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1103/PhysRevB.103.104101 | - |
dc.identifier.scopus | eid_2-s2.0-85102880218 | - |
dc.identifier.hkuros | 322201 | - |
dc.identifier.volume | 103 | - |
dc.identifier.issue | 10 | - |
dc.identifier.spage | article no. 104101 | - |
dc.identifier.epage | article no. 104101 | - |
dc.identifier.isi | WOS:000627551900001 | - |
dc.publisher.place | United States | - |