Ghiasi, Talieh S. and Petrosyan, Davit and Ingla-Aynes, Josep and Bras, Tristan and Watanabe, Kenji and Taniguchi, Takashi and Manas-Valero, Samuel and Coronado, Eugenio and Zollner, Klaus and Fabian, Jaroslav and Kim, Philip and van der Zant, Herre S. J. (2025) Quantum spin Hall effect in magnetic graphene. NATURE COMMUNICATIONS, 16 (1): 5336. ISSN 2041-1723
Full text not available from this repository. (Request a copy)Abstract
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.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | EXCHANGE FIELD; PHASE; FERROMAGNETISM |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Jaroslav Fabian |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 28 Jul 2026 07:43 |
| Last Modified: | 28 Jul 2026 07:43 |
| URI: | https://pred.uni-regensburg.de/id/eprint/67234 |
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