Intertwined Weyl phases emergent from higher-order topology and unconventional Weyl fermions via crystalline symmetry
Abstract We discover three-dimensional intertwined Weyl phases, by developing a theory to create topological phases. The theory is based on intertwining existing topological gapped and gapless phases protected by the same crystalline symmetry. The intertwined Weyl phases feature both unconventional...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2022-01-01
|
| Series: | npj Quantum Materials |
| Online Access: | https://doi.org/10.1038/s41535-022-00422-0 |
| _version_ | 1819231391473205248 |
|---|---|
| author | W. B. Rui Zhen Zheng Moritz M. Hirschmann Song-Bo Zhang Chenjie Wang Z. D. Wang |
| author_facet | W. B. Rui Zhen Zheng Moritz M. Hirschmann Song-Bo Zhang Chenjie Wang Z. D. Wang |
| author_sort | W. B. Rui |
| collection | DOAJ |
| description | Abstract We discover three-dimensional intertwined Weyl phases, by developing a theory to create topological phases. The theory is based on intertwining existing topological gapped and gapless phases protected by the same crystalline symmetry. The intertwined Weyl phases feature both unconventional Weyl semimetallic (monopole charge>1) and higher-order topological phases, and more importantly, their exotic intertwining. While the two phases are independently stabilized by the same symmetry, their intertwining results in the specific distribution of them in the bulk. The construction mechanism allows us to combine different kinds of unconventional Weyl semimetallic and higher-order topological phases to generate distinct phases. Remarkably, on 2D surfaces, the intertwining causes the Fermi-arc topology to change in a periodic pattern against surface orientation. This feature provides a characteristic and feasible signature to probe the intertwining Weyl phases. Moreover, we provide guidelines for searching candidate materials, and elaborate on emulating the intertwined double-Weyl phase in cold-atom experiments. |
| first_indexed | 2024-12-23T11:44:13Z |
| format | Article |
| id | doaj.art-884ea3faebd94e0b8559107a4717a5e2 |
| institution | Directory Open Access Journal |
| issn | 2397-4648 |
| language | English |
| last_indexed | 2024-12-23T11:44:13Z |
| publishDate | 2022-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Quantum Materials |
| spelling | doaj.art-884ea3faebd94e0b8559107a4717a5e22022-12-21T17:48:23ZengNature Portfolionpj Quantum Materials2397-46482022-01-01711710.1038/s41535-022-00422-0Intertwined Weyl phases emergent from higher-order topology and unconventional Weyl fermions via crystalline symmetryW. B. Rui0Zhen Zheng1Moritz M. Hirschmann2Song-Bo Zhang3Chenjie Wang4Z. D. Wang5Department of Physics and HKU-UCAS Joint Institute for Theoretical and Computational Physics at Hong Kong, The University of Hong KongDepartment of Physics and HKU-UCAS Joint Institute for Theoretical and Computational Physics at Hong Kong, The University of Hong KongMax Planck Institute for Solid State ResearchInstitute for Theoretical Physics and Astrophysics, University of WürzburgDepartment of Physics and HKU-UCAS Joint Institute for Theoretical and Computational Physics at Hong Kong, The University of Hong KongDepartment of Physics and HKU-UCAS Joint Institute for Theoretical and Computational Physics at Hong Kong, The University of Hong KongAbstract We discover three-dimensional intertwined Weyl phases, by developing a theory to create topological phases. The theory is based on intertwining existing topological gapped and gapless phases protected by the same crystalline symmetry. The intertwined Weyl phases feature both unconventional Weyl semimetallic (monopole charge>1) and higher-order topological phases, and more importantly, their exotic intertwining. While the two phases are independently stabilized by the same symmetry, their intertwining results in the specific distribution of them in the bulk. The construction mechanism allows us to combine different kinds of unconventional Weyl semimetallic and higher-order topological phases to generate distinct phases. Remarkably, on 2D surfaces, the intertwining causes the Fermi-arc topology to change in a periodic pattern against surface orientation. This feature provides a characteristic and feasible signature to probe the intertwining Weyl phases. Moreover, we provide guidelines for searching candidate materials, and elaborate on emulating the intertwined double-Weyl phase in cold-atom experiments.https://doi.org/10.1038/s41535-022-00422-0 |
| spellingShingle | W. B. Rui Zhen Zheng Moritz M. Hirschmann Song-Bo Zhang Chenjie Wang Z. D. Wang Intertwined Weyl phases emergent from higher-order topology and unconventional Weyl fermions via crystalline symmetry npj Quantum Materials |
| title | Intertwined Weyl phases emergent from higher-order topology and unconventional Weyl fermions via crystalline symmetry |
| title_full | Intertwined Weyl phases emergent from higher-order topology and unconventional Weyl fermions via crystalline symmetry |
| title_fullStr | Intertwined Weyl phases emergent from higher-order topology and unconventional Weyl fermions via crystalline symmetry |
| title_full_unstemmed | Intertwined Weyl phases emergent from higher-order topology and unconventional Weyl fermions via crystalline symmetry |
| title_short | Intertwined Weyl phases emergent from higher-order topology and unconventional Weyl fermions via crystalline symmetry |
| title_sort | intertwined weyl phases emergent from higher order topology and unconventional weyl fermions via crystalline symmetry |
| url | https://doi.org/10.1038/s41535-022-00422-0 |
| work_keys_str_mv | AT wbrui intertwinedweylphasesemergentfromhigherordertopologyandunconventionalweylfermionsviacrystallinesymmetry AT zhenzheng intertwinedweylphasesemergentfromhigherordertopologyandunconventionalweylfermionsviacrystallinesymmetry AT moritzmhirschmann intertwinedweylphasesemergentfromhigherordertopologyandunconventionalweylfermionsviacrystallinesymmetry AT songbozhang intertwinedweylphasesemergentfromhigherordertopologyandunconventionalweylfermionsviacrystallinesymmetry AT chenjiewang intertwinedweylphasesemergentfromhigherordertopologyandunconventionalweylfermionsviacrystallinesymmetry AT zdwang intertwinedweylphasesemergentfromhigherordertopologyandunconventionalweylfermionsviacrystallinesymmetry |