Dataset for article "Determination of interatomic coupling between two-dimensional crystals using angle-resolved photoemission spectroscopy"
This dataset contains information about the results of angle-resolved photoemission spectroscopy (ARPES) measurements of twisted bilayer graphene as well as theoretical modelling of this experiment. It accompanies a peer reviewed academic publication in which the experiment and theoretical model are described in more detail.
Cite this dataset as:
Thompson, J.,
Pei, D.,
Peng, H.,
Wang, H.,
Channa, N.,
Peng, H.,
Barinov, A.,
Schröter, N.,
Chen, Y.,
Mucha-Kruczynski, M.,
2020.
Dataset for article "Determination of interatomic coupling between two-dimensional crystals using angle-resolved photoemission spectroscopy".
Bath: University of Bath Research Data Archive.
Available from: https://doi.org/10.15125/BATH-00864.
Export
Data
twisted_trilayer … ARPES.zip
application/zip (53MB)
Creative Commons: Attribution 4.0
Zip archive containing all data used/produced in the paper
Creators
Joshua Thompson
University of Bath
Ding Pei
University of Oxford
Han Peng
University of Oxford
Huan Wang
Peking University
Nikita Channa
University of Bath; University of Warwick
Hailin Peng
Peking University
Alexei Barinov
Elettra Sincrotrone Trieste
Niels B M Schröter
University of Oxford; Swiss Light Source
Yulin Chen
University of Oxford
Marcin Mucha-Kruczynski
University of Bath
Contributors
University of Bath
Rights Holder
Documentation
Data collection method:
The ARPES measurements were performed at the Spectromicroscopy beamline at the Elettra synchrotron (Trieste, Italy). Before measurements, the samples were annealed at 350 °C for 30 minutes. The experiment was then performed at a base pressure of 10^-10 mbar in ultrahigh vacuum and at the temperature of 110 K. We used photons with energy of 74 eV and estimate our energy and angular resolution as 50 meV and 0.5°, respectively. For each sample, we determined the twist angle by measuring the distance between the nearest BZ corners of the two layers. The theoretical graphs and spectra were produced using equations given in the text of the manuscript.
Technical details and requirements:
Experimental ARPES data was transferred to Matlab for further analysis and processing. Theoretical simulations were also performed using Matlab. All the enclosed data is saved in Matlab formats.
Additional information:
The following describes content of the files in the archive (below, "(x)" stands for numerical part of the name of one of the files in the archive; figure numbers refer to figures in the accompanying publication): - Cut_9_64.mat - experimental ARPES map for Fig 2(a). - couplinggraphs.mat - plots in Fig 2(b). - Cut_9_06.mat - experimental ARPES map for Fig 3(a). - Cut_19.mat – experimental ARPES mao for Fig. 3(b). - (x)energyworkspace.mat - calculated ARPES maps for Fig 4 at energy (x). - experimental(x)workspace.mat - experimental data for Fig 4 at energy (x). - Bilayer_19_1.mat – original experimental ARPES data for twisted bilayer graphene in Fig 3 (b); workspace is organised in the same way as “E_contour_(x).mat” described below. - E_contour_(x).mat - original experimental ARPES data for twisted trilayer with twist angle (x); within this file, the structures "SMPM12058_(x)" contain information about photoelectrons with energy (x); the variables "x" and "y" correspond to kx and ky, respectively, and "value" to measured ARPES intensity; also contained within these structure is variable "info" which describes experimental details of the ARPES measurement. - IntensityCutTBLG134 and IntensityCutTBLG096 correspond to the supplementary figure 1, sub-figures (a) and (b) respectively.
Funders
Engineering and Physical Sciences Research Council
https://doi.org/10.13039/501100000266
Doctoral Training Partnership - University of Bath
EP/M507982/1
China Scholarship Council
https://doi.org/10.13039/501100004543
University of Bath
https://doi.org/10.13039/501100000835
International Research Funding Scheme Award
University of Bath
https://doi.org/10.13039/501100000835
IMI Undergraduate Research Experience Award
Publication details
Publication date: 17 July 2020
by: University of Bath
Version: 1
DOI: https://doi.org/10.15125/BATH-00864
URL for this record: https://researchdata.bath.ac.uk/id/eprint/864
Related papers and books
Thompson, J. J. P., Pei, D., Peng, H., Wang, H., Channa, N., Peng, H. L., Barinov, A., Schröter, N. B. M., Chen, Y., and Mucha-Kruczyński, M., 2020. Determination of interatomic coupling between two-dimensional crystals using angle-resolved photoemission spectroscopy. Nature Communications, 11(1). Available from: https://doi.org/10.1038/s41467-020-17412-0.
Contact information
Please contact the Research Data Service in the first instance for all matters concerning this item.
Contact person: Marcin Mucha-Kruczynski
Faculty of Science
Physics
Research Centres & Institutes
Centre for Nanoscience and Nanotechnology