Electric-field tunable spin texture in dual-gated HfS₂/graphene van der Waals heterostructures

@misc{yang2026electricfield,
  title = {{Electric-field tunable spin texture in dual-gated HfS$_2$/graphene van der Waals heterostructures}},
  author = {Haozhe Yang and Zhendong Chi and Eoin Dolan and Josep Ingla-Aynés and Beatriz Martín-García and Witold Skowroński and Marco Gobbi and Andrey Chuvilin and Luis E. Hueso and Fèlix Casanova},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.29739},
  eprint = {2610.29739},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.29739},
}

TY  - UNPB
TI  - Electric-field tunable spin texture in dual-gated HfS_2/graphene van der Waals heterostructures
AU  - Haozhe Yang
AU  - Zhendong Chi
AU  - Eoin Dolan
AU  - Josep Ingla-Aynés
AU  - Beatriz Martín-García
AU  - Witold Skowroński
AU  - Marco Gobbi
AU  - Andrey Chuvilin
AU  - Luis E. Hueso
AU  - Fèlix Casanova
PY  - 2026
DA  - 2026/10/21
PB  - arXiv
DO  - 10.48550/arxiv.2610.29739
UR  - https://arxiv.org/abs/2610.29739
AB  - Spin-charge interconversion provides the essential link between spin information and electrical signals in spintronic devices. In spin-orbit coupled systems, spin-charge interconversion can contain multiple components associated with different spin-polarization directions, reflecting the underlying spin texture. Tuning this spin texture therefore provides a way to control not only the magnitude of spin-charge interconversion, but also the balance among its different components. Graphene-based van der Waals heterostructures provide an attractive platform for this purpose because interfacial spin-orbit coupling can host multiple spin-charge interconversion channels that couple to different spin-polarization directions. Here, we demonstrate electric-field control of spin texture in a dual-gated HfS_2/graphene van der Waals heterostructure, where independent control of carrier density and vertical electric field allows us to disentangle electrostatic doping from electric field-induced spin-orbit effects. Nonlocal spin precession measurements show that near zero vertical electric field, spin-charge interconversion is dominated by a spin Hall component with out-of-plane spins. Increasing the vertical electric field enhances additional in-plane spin components with Rashba-Edelstein-like character, including both parallel and perpendicular to the charge current contributions. These results provide experimental evidence that a vertical electric field can reconfigure the effective spin texture and control the corresponding spin-charge interconversion components, demonstrating electrical tunability of spin-orbit functionalities.
ER  -