Research paperExperimental CharacterizationTheoreticalExperimental observation of spin–split energy dispersion in high-mobility single-layer graphene/WSe₂ heterostructuresPriya Tiwari, Mohit Kumar Jat, Adithi Udupa, Deepa S. Narang et al.arXiv preprint·2022·10.1038/s41699-022-00348-y·arXiv:2210.08926AbstractWe report the experimental determination of the band structure of single-layer graphene in the presence of strong proximity-induced spin-orbit coupling using high-mobility hBN-encapsulated SLG/WSe₂ heterostructures. Quantum oscillation measurements reveal clear spin splitting of the graphene bands, an enhanced Fermi velocity, evidence of a band gap opening, and band inversion near zero energy. A theoretical model with realistic parameters is used to fit the data and show that valley-Zeeman and Rashba spin-orbit interactions dominate the low-energy dispersion.Read more
High-mobility hBN-encapsulated single-layer graphene/trilayer WSe₂ heterostructure device (device 9S₆) fabricated by dry transfer with one-dimensional Cr/Au contacts.1 preparation1 characterization8 properties4 figuresExperimentalCStudied MaterialWSe₂Studied MaterialhBNSubstrate / DielectricSiO₂Substrate / DielectricSiSubstrate / DielectricCrCapping Or ContactAuCapping Or ContactExpand
Research paperExperimental CharacterizationTheoreticalExperimental observation of spin–split energy dispersion in high-mobility single-layer graphene/WSe₂ heterostructuresPriya Tiwari, Mohit Kumar Jat, Adithi Udupa, Deepa S. Narang et al.arXiv preprint·2022·10.1038/s41699-022-00348-y·arXiv:2210.08926AbstractWe report the experimental determination of the band structure of single-layer graphene in the presence of strong proximity-induced spin-orbit coupling using high-mobility hBN-encapsulated SLG/WSe₂ heterostructures. Quantum oscillation measurements reveal clear spin splitting of the graphene bands, an enhanced Fermi velocity, evidence of a band gap opening, and band inversion near zero energy. A theoretical model with realistic parameters is used to fit the data and show that valley-Zeeman and Rashba spin-orbit interactions dominate the low-energy dispersion.Read more
High-mobility hBN-encapsulated single-layer graphene/trilayer WSe₂ heterostructure device (device 9S₆) fabricated by dry transfer with one-dimensional Cr/Au contacts.1 preparation1 characterization8 properties4 figuresExperimentalCStudied MaterialWSe₂Studied MaterialhBNSubstrate / DielectricSiO₂Substrate / DielectricSiSubstrate / DielectricCrCapping Or ContactAuCapping Or ContactExpand
Research paperExperimental CharacterizationTheoreticalExperimental observation of spin–split energy dispersion in high-mobility single-layer graphene/WSe₂ heterostructuresPriya Tiwari, Mohit Kumar Jat, Adithi Udupa, Deepa S. Narang et al.arXiv preprint·2022·10.1038/s41699-022-00348-y·arXiv:2210.08926AbstractWe report the experimental determination of the band structure of single-layer graphene in the presence of strong proximity-induced spin-orbit coupling using high-mobility hBN-encapsulated SLG/WSe₂ heterostructures. Quantum oscillation measurements reveal clear spin splitting of the graphene bands, an enhanced Fermi velocity, evidence of a band gap opening, and band inversion near zero energy. A theoretical model with realistic parameters is used to fit the data and show that valley-Zeeman and Rashba spin-orbit interactions dominate the low-energy dispersion.Read more
High-mobility hBN-encapsulated single-layer graphene/trilayer WSe₂ heterostructure device (device 9S₆) fabricated by dry transfer with one-dimensional Cr/Au contacts.1 preparation1 characterization8 properties4 figuresExperimentalCStudied MaterialWSe₂Studied MaterialhBNSubstrate / DielectricSiO₂Substrate / DielectricSiSubstrate / DielectricCrCapping Or ContactAuCapping Or ContactExpand
Research paperExperimental CharacterizationTheoreticalExperimental observation of spin–split energy dispersion in high-mobility single-layer graphene/WSe₂ heterostructuresPriya Tiwari, Mohit Kumar Jat, Adithi Udupa, Deepa S. Narang et al.arXiv preprint·2022·10.1038/s41699-022-00348-y·arXiv:2210.08926AbstractWe report the experimental determination of the band structure of single-layer graphene in the presence of strong proximity-induced spin-orbit coupling using high-mobility hBN-encapsulated SLG/WSe₂ heterostructures. Quantum oscillation measurements reveal clear spin splitting of the graphene bands, an enhanced Fermi velocity, evidence of a band gap opening, and band inversion near zero energy. A theoretical model with realistic parameters is used to fit the data and show that valley-Zeeman and Rashba spin-orbit interactions dominate the low-energy dispersion.Read more
High-mobility hBN-encapsulated single-layer graphene/trilayer WSe₂ heterostructure device (device 9S₆) fabricated by dry transfer with one-dimensional Cr/Au contacts.1 preparation1 characterization8 properties4 figuresExperimentalCStudied MaterialWSe₂Studied MaterialhBNSubstrate / DielectricSiO₂Substrate / DielectricSiSubstrate / DielectricCrCapping Or ContactAuCapping Or ContactExpand