TY - JOUR
T1 - Electronic band dispersion determination in azimuthally disordered transition-metal dichalcogenide monolayers
AU - Park, S.
AU - Schultz, T.
AU - Han, Ali
AU - Aljarb, Areej
AU - Xu, X.
AU - Beyer, P.
AU - Opitz, A.
AU - Ovsyannikov, R.
AU - Li, Lain-Jong
AU - Meissner, M.
AU - Yamaguchi, T.
AU - Kera, S.
AU - Amsalem, P.
AU - Koch, N.
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was supported by the DFG (SFB951 and AM 419/1-1) and the Alexander von Humboldt-Stiftung. We thank the HZB and the IMS for allocating synchrotron radiation beam time (Bessy ΙΙ, PM4 and UVSOR, BL7U). We are grateful to Prof. Torsten Fritz for insightful discussions.
PY - 2019/6/21
Y1 - 2019/6/21
N2 - 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.
AB - 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.
UR - http://hdl.handle.net/10754/656368
UR - http://www.nature.com/articles/s42005-019-0166-0
UR - http://www.scopus.com/inward/record.url?scp=85071154219&partnerID=8YFLogxK
U2 - 10.1038/s42005-019-0166-0
DO - 10.1038/s42005-019-0166-0
M3 - Article
SN - 2399-3650
VL - 2
JO - Communications Physics
JF - Communications Physics
IS - 1
ER -