Multiple Coexisting Dirac Surface States in Three-Dimensional Topological Insulator PbBi6Te10
By means of angle-resolved photoemission spectroscopy (ARPES) measurements, we unveil the electronic band structure of three-dimensional PbBi6Te10 topological insulator.
M. Papagno et al., ACS Nano, Vol. 10 - 3, pp. 3518-3524 (2016), doi: 10.1021/acsnano.5b07750
We also provide evidence of Rashba-like split states close to the Fermi level, and deeper M- and V-shaped bands coexisting with the topological surface states. The experimental findings are in agreement with scanning tunneling microscopy measurements revealing different surface terminations according to the crystal structure of PbBi6Te10. Our experimental results are supported by density functional theory calculations predicting multiple topological surface states according to different surface cleavage planes.
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ACS Nano, Vol. 10 - 3, pp. 3518-3524 (2016), doi: 10.1021/acsnano.5b07750
Ultima modifica il Giovedì, 24 Febbraio 2022 15:47