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September 28, 2025Open Access

Edge-state competition in a 2D topological insulator-semiconductor heterostructure

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Authors

WLWei LiPPPier PhilipsenTBThomas Brumme

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Overview

Observational analysis reveals robust edge states in WSe2 heterostructures, suggesting optimal conditions for quantized conductance.

Key Points

  • Robust edge states persist in 1T' WSe2 ribbons despite a laterally infinite 2H substrate.
  • Shifting of the Dirac point occurs due to long-wavelength corrugation without adding new in-gap states.
  • Miniband reconstruction is driven by lattice relaxation at small twist angles between the layers.
  • Control over twist angle and edge termination critically influences the electronic properties and conductance.

Cite This Study

Li et al. (2025) studied this question.

synapsesocial.com/papers/68d913ab4ddcf71ba560bc0ahttps://doi.org/10.48550/arxiv.2508.12841
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