File Download
  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Tunable double Weyl phonons driven by chiral point group symmetry

TitleTunable double Weyl phonons driven by chiral point group symmetry
Authors
Issue Date2021
PublisherAmerican 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?
AbstractDifferent 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 Identifierhttp://hdl.handle.net/10722/299113
ISSN
2020 Impact Factor: 4.036
2020 SCImago Journal Rankings: 1.780
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorJIN, YJ-
dc.contributor.authorChen, ZJ-
dc.contributor.authorXiao, XL-
dc.contributor.authorXu, H-
dc.date.accessioned2021-04-28T02:26:21Z-
dc.date.available2021-04-28T02:26:21Z-
dc.date.issued2021-
dc.identifier.citationPhysical Review B: covering condensed matter and materials physics, 2021, v. 103 n. 10, p. article no. 104101-
dc.identifier.issn2469-9950-
dc.identifier.urihttp://hdl.handle.net/10722/299113-
dc.description.abstractDifferent 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.languageeng-
dc.publisherAmerican Physical Society. The Journal's web site is located at http://journals.aps.org/prb/-
dc.relation.ispartofPhysical Review B: covering condensed matter and materials physics-
dc.rightsCopyright [2021] by The American Physical Society. This article is available online at [http://dx.doi.org/10.1103/PhysRevB.103.104101].-
dc.titleTunable double Weyl phonons driven by chiral point group symmetry-
dc.typeArticle-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1103/PhysRevB.103.104101-
dc.identifier.scopuseid_2-s2.0-85102880218-
dc.identifier.hkuros322201-
dc.identifier.volume103-
dc.identifier.issue10-
dc.identifier.spagearticle no. 104101-
dc.identifier.epagearticle no. 104101-
dc.identifier.isiWOS:000627551900001-
dc.publisher.placeUnited States-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats