Martelo, L. M. and Ferreira, Aires orcid.org/0000-0001-6017-8669 (2024) Designer spin-orbit superlattices: symmetry-protected Dirac cones and spin Berry curvature in two-dimensional van der Waals metamaterials. Communications Physics. 308. ISSN 2399-3650
Abstract
The emergence of strong relativistic spin-orbit effects in low-dimensional systems provides a rich opportunity for exploring unconventional states of matter. Here, we present a route to realise tunable relativistic band structures based on the lateral patterning of proximity-induced spin-orbit coupling. The concept is illustrated on a patterned graphene–transition metal dichalcogenide heterostructure, where the spatially periodic spin-orbit coupling induces a rich mini-band structure featuring massless and massive Dirac bands carrying large spin Berry curvature. The envisaged systems support robust and gate-tunable spin Hall responses driven by the quantum geometry of mini-bands, which can be tailored through metasurface fabrication methods and twisting effects. These findings open pathways to two-dimensional quantum material design and low-power spintronic applications.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 20 Sep 2024 16:50 |
Last Modified: | 23 Jan 2025 00:35 |
Published Version: | https://doi.org/10.1038/s42005-024-01801-8 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1038/s42005-024-01801-8 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:217482 |