Quantum spin Hall effect in magnetic graphene

Talieh S. Ghiasi (), Davit Petrosyan, Josep Ingla-Aynés, Tristan Bras, Kenji Watanabe, Takashi Taniguchi, Samuel Mañas-Valero, Eugenio Coronado, Klaus Zollner, Jaroslav Fabian, Philip Kim and Herre S. J. Zant
Additional contact information
Talieh S. Ghiasi: Delft University of Technology
Davit Petrosyan: Delft University of Technology
Josep Ingla-Aynés: Delft University of Technology
Tristan Bras: Delft University of Technology
Kenji Watanabe: National Institute for Materials Science
Takashi Taniguchi: National Institute for Materials Science
Samuel Mañas-Valero: Delft University of Technology
Eugenio Coronado: University of Valencia
Klaus Zollner: University of Regensburg
Jaroslav Fabian: University of Regensburg
Philip Kim: Harvard University
Herre S. J. Zant: Delft University of Technology

Nature Communications, 2025, vol. 16, issue 1, 1-8

Abstract: 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.

Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-025-60377-1 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-60377-1

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-025-60377-1

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().