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Passive topological waveguide controlled by the boundary of the patterned area of external magnetic field with the hybrid quantum Hall and valley Hall effects
Jiangsu Univ, Sch Comp Sci & Commun Engn, Zhenjiang 212013, Peoples R China..
Jiangsu Univ, Sch Comp Sci & Commun Engn, Zhenjiang 212013, Peoples R China..
KTH, School of Electrical Engineering and Computer Science (EECS), Electrical Engineering, Electromagnetic Engineering. KTH, School of Engineering Sciences (SCI), Centres, Zhejiang-KTH Joint Research Center of Photonics, JORCEP. Zhejiang Univ, Natl Engn Res Ctr Opt Instruments, Ctr Opt & Electromagnet Res, State Key Lab Modern Opt Instrumentat,Zhejiang Pro, Hangzhou 310058, Peoples R China..ORCID iD: 0000-0002-3401-1125
2023 (English)In: New Journal of Physics, E-ISSN 1367-2630, Vol. 25, no 1, article id 013021Article in journal (Refereed) Published
Abstract [en]

Topological waveguides with arbitrary pathway are desirable for many applications. In this paper we construct a triangular compound lattice consisting of magnetic dielectric rods. By breaking the space symmetry and the time-reversal symmetry, the structure generates topological edge states (TESs) from the hybrid quantum Hall effects and valley Hall effects. This topological edge waveguide pathway can be arbitrary arranged just by the external magnetic field. The hybrid topological phase provides a new and ultraflexible way to the reconfiguration of the TESs.

Place, publisher, year, edition, pages
IOP Publishing , 2023. Vol. 25, no 1, article id 013021
Keywords [en]
topological edge states, quantum Hall effects, quantum valley Hall effects, reconfiguration
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:kth:diva-323763DOI: 10.1088/1367-2630/acb2e7ISI: 000916100800001Scopus ID: 2-s2.0-85147190734OAI: oai:DiVA.org:kth-323763DiVA, id: diva2:1736989
Note

QC 20230215

Available from: 2023-02-15 Created: 2023-02-15 Last updated: 2024-01-17Bibliographically approved

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He, Sailing

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