Electronic band dispersion determination in azimuthally disordered transition-metal dichalcogenide monolayers
- Electronic band dispersion determination in azimuthally disordered transition-metal dichalcogenide monolayers
- 박수형; T. Schultz; A. Han; A. Aljarb; X. Xu; P. Beyer; A. Opitz; R. Ovsyannikov; L.-J. Li; M. Meissner; T. Yamaguchi; S. Kera; P. Amsalem; N. Koch
- Issue Date
- Communications Physics
- VOL 2-68-6
- Generally, the lack of long-range order in materials prevents from experimentally addressing
their electronic band dispersion by angle-resolved photoelectron spectroscopy (ARPES), limiting such assessment to single crystalline samples. Here we demonstrate that the ARPES spectra of azimuthally disordered transition metal dichalcogenide (TMDC) monolayers with 2 H phase are dominated by their band dispersion along the two high symmetry directions Γ-K and Γ-M. We exemplify this by analyzing the ARPES spectra of four prototypical TMDCs within a mathematical framework, which allows to consistently explain the reported observations. A robust base for investigating TMDC monolayers significantly beyond single crystal samples is thus established.
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