Electronic band dispersion determination in azimuthally disordered transition-metal dichalcogenide monolayers

S. Park, T. Schultz, Ali Han, Areej Aljarb, X. Xu, P. Beyer, A. Opitz, R. Ovsyannikov, Lain-Jong Li, M. Meissner, T. Yamaguchi, S. Kera, P. Amsalem, N. Koch

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

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.
Original languageEnglish (US)
JournalCommunications Physics
Volume2
Issue number1
DOIs
StatePublished - Jun 21 2019

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