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- Title
Impact of Co Atoms on the Electronic Structure of Bi<sub>2</sub>Te<sub>3</sub> and MnBi<sub>2</sub>Te<sub>4</sub> Topological Insulators.
- Authors
Makarova, T. P.; Estyunin, D. A.; Fil'nov, S. O.; Glazkova, D. A.; Pudikov, D. A.; Rybkin, A. G.; Gogina, A. A.; Aliev, Z. S.; Amiraslanov, I. R.; Mamedov, N. T.; Kokh, K. A.; Tereshchenko, O. E.; Shikin, A. M.; Otrokov, M. M.; Chulkov, E. V.; Klimovskikh, I. I.
- Abstract
This work is devoted to an experimental investigation of the electronic structure of the surface of topological insulators of various stoichiometry during the adsorption of Co atoms. Changes in the surface electronic structure of Bi2Te3 and MnBi2Te4 systems upon deposition of Co atoms at various temperatures have been studied using the methods of angle-resolved photoemission spectroscopy, as well as X-ray photoelectron spectroscopy. It is suggested that binding of the adsorbed Co atoms to the substrate surface modifies Dirac point position. The observed changes are associated with the possible formation of magnetic Co-containing ordered surface alloys.
- Subjects
TOPOLOGICAL insulators; ELECTRONIC structure; X-ray photoelectron spectroscopy; PHOTOELECTRON spectroscopy; ATOMS; SEMIMETALS
- Publication
Journal of Experimental & Theoretical Physics, 2022, Vol 134, Issue 5, p607
- ISSN
1063-7761
- Publication type
Article
- DOI
10.1134/S1063776122030086