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- W4365509675 abstract "Using microfocused angle-resolved photoemission spectroscopy we investigated microstructures containing regions of single-layer (SL) and bilayer (BL) ${mathrm{WSe}}_{2}$ on graphite substrates at different twist angles between SL ${mathrm{WSe}}_{2}$ and graphite and within the BL ${mathrm{WSe}}_{2}$. Fermi level electrons emitted from the graphite are sharply focused near their $K{}_{gr}$ points in the Brillouin zone, and, when passing through the ${mathrm{WSe}}_{2}$, get diffracted to form band replicas readily observed in experimental Fermi surface maps from twisted SL ${mathrm{WSe}}_{2}$/graphite. We investigated two twisted BL ${mathrm{WSe}}_{2}$ at twist angles $ensuremath{sim}{28}^{ensuremath{circ}}$ and $ensuremath{sim}{10}^{ensuremath{circ}}$ and found no evidence of hybridization gaps at the interlayer band-crossing points, that could be precursors of the flat bands at smaller twist angles. Similarly, no such gaps were found for SL ${mathrm{WSe}}_{2}$/graphite. Experimental results are complemented by theoretical density functional theory calculations, which suggest that a formation of hybridization gaps in the ${mathrm{WSe}}_{2}$/graphene (which approximates the experimental ${mathrm{WSe}}_{2}$/graphite system) sensitively depends on the ${mathrm{WSe}}_{2}$ band character at the crossing point with the graphene Dirac band." @default.
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- W4365509675 date "2023-04-14" @default.
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- W4365509675 title "Photoemission study of twisted monolayers and bilayers of <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:msub><mml:mi>WSe</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math> on graphite substrates" @default.
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- W4365509675 doi "https://doi.org/10.1103/physrevmaterials.7.044004" @default.
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