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Quantum spin Hall effect in magnetic graphene
Ghiasi, Talieh S.
, Petrosyan, Davit
, Ingla-Aynés, Josep
, Bras, Tristan
, Watanabe, Kenji
, Taniguchi, Takashi
, Mañas-Valero, Samuel
, Coronado, Eugenio
, Zollner, Klaus
, Fabian, Jaroslav
, Kim, Philip
und van der Zant, Herre S. J.
(2025)
Quantum spin Hall effect in magnetic graphene.
Nature Communications 16, S. 5336.
Veröffentlichungsdatum dieses Volltextes: 20 Nov 2025 06:43
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.78180
Zusammenfassung
A promising approach to attain long-distance coherent spin propagation is accessing topological spin-polarized edge states in graphene. Achieving this without external magnetic fields necessitates engineering graphene band structure, obtainable through proximity effects in van der Waals heterostructures. In particular, proximity-induced staggered potentials and spin-orbit coupling are expected to ...
A promising approach to attain long-distance coherent spin propagation is accessing topological spin-polarized edge states in graphene. Achieving this without external magnetic fields necessitates engineering graphene band structure, obtainable through proximity effects in van der Waals heterostructures. In particular, proximity-induced staggered potentials and spin-orbit coupling are expected to form a topological bulk gap in graphene with gapless helical edge states that are robust against disorder. In this work, we detect the spin-polarized helical edge transport in graphene at zero external magnetic field, allowed by the proximity of an interlayer antiferromagnet, CrPS4. We show the coexistence of the quantum spin Hall (QSH) states and magnetism in graphene, where the induced spin-orbit and exchange couplings also give rise to a large anomalous Hall (AH) effect. The detection of the QSH states at zero external magnetic field, together with the AH signal that persists up to room temperature, opens the route for practical applications of magnetic graphene in quantum spintronic circuitries.
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| Dokumentenart | Artikel | ||||
| Titel eines Journals oder einer Zeitschrift | Nature Communications | ||||
| Verlag: | Nature Publishing Group (NPG) | ||||
|---|---|---|---|---|---|
| Band: | 16 | ||||
| Seitenbereich: | S. 5336 | ||||
| Datum | 24 Juni 2025 | ||||
| Institutionen | Physik > Institut für Theoretische Physik > Lehrstuhl Professor Richter > Arbeitsgruppe Jaroslav Fabian | ||||
| Projekte |
Gefördert von:
Deutsche Forschungsgemeinschaft (DFG)
(314695032)
Gefördert von:
Deutsche Forschungsgemeinschaft (DFG)
(422707584)
| ||||
| Identifikationsnummer |
| ||||
| Dewey-Dezimal-Klassifikation | 500 Naturwissenschaften und Mathematik > 530 Physik | ||||
| Status | Veröffentlicht | ||||
| Begutachtet | Ja, diese Version wurde begutachtet | ||||
| An der Universität Regensburg entstanden | Zum Teil | ||||
| URN der UB Regensburg | urn:nbn:de:bvb:355-epub-781803 | ||||
| Dokumenten-ID | 78180 |
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