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PreprintCC BY 4.0arXiv

Electrode-tunable nonlocal charge to spin conversion in WSe2-intercalated bilayer graphene

  • Marko Milivojević
  • Juraj Mnich
  • Martin Gmitra
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Abstract

We show that intercalating a WSe2 monolayer into bilayer graphene mediates wavefunction hybridization of the two graphene layers at the Fermi level. These delocalized states entangle both graphene layers, creating a synthetic bilayer graphene with interlayer coupling comparable to the proximity-induced spin-orbit interaction. By analyzing transport properties of a four-terminal device, we demonstrate equal entangled parallel charge currents in both graphene layers, allowing us to unlock the hidden Rashba states via layer-selective chirality manifested in opposite-signed local Rashba-Edelstein signals. We also show nonlocal Rashba-Edelstein and spin Hall effects activated in one graphene layer when a charge current is driven in a spatially adjacent graphene layer. This effect is robust to the twist angle modulation between graphene and WSe2, and to the applied electric field, suggesting its durability.

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Cite

BibTeXRIS
BibTeX
@misc{milivojevic2026electrodetunable,
  title = {{Electrode-tunable nonlocal charge to spin conversion in WSe$_2$-intercalated bilayer graphene}},
  author = {Marko Milivojević and Juraj Mnich and Martin Gmitra},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2608.15622},
  eprint = {2608.15622},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2608.15622},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Electrode-tunable nonlocal charge to spin conversion in WSe_2-intercalated bilayer graphene
AU  - Marko Milivojević
AU  - Juraj Mnich
AU  - Martin Gmitra
PY  - 2026
DA  - 2026/09/16
PB  - arXiv
DO  - 10.48550/arxiv.2608.15622
UR  - https://arxiv.org/abs/2608.15622
AB  - We show that intercalating a WSe_2 monolayer into bilayer graphene mediates wavefunction hybridization of the two graphene layers at the Fermi level. These delocalized states entangle both graphene layers, creating a synthetic bilayer graphene with interlayer coupling comparable to the proximity-induced spin-orbit interaction. By analyzing transport properties of a four-terminal device, we demonstrate equal entangled parallel charge currents in both graphene layers, allowing us to unlock the hidden Rashba states via layer-selective chirality manifested in opposite-signed local Rashba-Edelstein signals. We also show nonlocal Rashba-Edelstein and spin Hall effects activated in one graphene layer when a charge current is driven in a spatially adjacent graphene layer. This effect is robust to the twist angle modulation between graphene and WSe_2, and to the applied electric field, suggesting its durability.
ER  -