Atom-specific spin mapping and buried topological states in a homologous series of topological insulators
A topological insulator is a state of quantum matter that, while being an insulator in the bulk, hosts topologically protected electronic states at the surface. These states open the opportunity to realize a number of new applications in spintronics and quantum computing. To take advantage of their peculiar properties, topological insulators should be tuned in such a way that ideal and isolated Dirac cones are located within the topological transport regime without any scattering channels. Here we report ab-initio calculations, spin-resolved photoemission and scanning tunnelling microscopy experiments that demonstrate that the conducting states can effectively tuned within the concept of a homologous series that is formed by the binary chalcogenides (Bi2Te3, Bi2Se3 and Sb2Te3), with the addition of a third element of the group IV.
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Eremeev, S. V., Landolt, G., Menshchikova, T. V., Slomski, B., Koroteev, Y. M., Aliev, Z. S., Babanly, M. B., Henk, J., Ernst, A., Patthey, L., Eich, A., Khajetoorians, A. A., Hagemeister, J., Pietzsch, O., Wiebe, J., Wiesendanger, R., Echenique, P. M., Tsirkin, S. S., Amiraslanov, I. R., et al. (2012). Atom-specific spin mapping and buried topological states in a homologous series of topological insulators. Nature Communications, 3. https://doi.org/10.1038/ncomms1638
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WOS:000299921000033
2012
3
635
REVIEWED
OTHER