Biswas, D;
Ganose, AM;
Yano, R;
Riley, JM;
Bawden, L;
Clark, OJ;
Feng, J;
... King, PDC; + view all
(2017)
Narrow-band anisotropic electronic structure of ReS2.
Physical Review B
, 96
(8)
, Article 085205. 10.1103/PhysRevB.96.085205.
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Abstract
We have used angle-resolved photoemission spectroscopy to investigate the band structure of ReS2, a transition-metal dichalcogenide semiconductor with a distorted 1T crystal structure. We find a large number of narrow valence bands, which we attribute to the combined influence of structural distortion and spin-orbit coupling. We further show how this leads to a strong in-plane anisotropy of the electronic structure, with quasi-one-dimensional bands reflecting predominant hopping along zigzag Re chains. We find that this does not persist up to the top of the valence band, where a more three-dimensional character is recovered with the fundamental band gap located away from the Brillouin zone center along kz. These experiments are in good agreement with our density-functional theory calculations, shedding light on the bulk electronic structure of ReS2, and how it can be expected to evolve when thinned to a single layer.
| Type: | Article |
|---|---|
| Title: | Narrow-band anisotropic electronic structure of ReS2 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevB.96.085205 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevB.96.085205 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10022764 |
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