Surface state charge dynamics of a high-mobility three-dimensional topological insulator

We present a magneto-optical study of the three-dimensional topological insulator, strained HgTe, using a technique which capitalizes on advantages of time-domain spectroscopy to amplify the signal from the surface states. This measurement delivers valuable and precise information regarding the surf...

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Bibliographic Details
Published in:Physical review letters 2011-09, Vol.107 (13), p.136803-136803, Article 136803
Main Authors: Hancock, Jason N, van Mechelen, J L M, Kuzmenko, Alexey B, van der Marel, Dirk, Brüne, Christoph, Novik, Elena G, Astakhov, Georgy V, Buhmann, Hartmut, Molenkamp, Laurens W
Format: Article
Language:English
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Summary:We present a magneto-optical study of the three-dimensional topological insulator, strained HgTe, using a technique which capitalizes on advantages of time-domain spectroscopy to amplify the signal from the surface states. This measurement delivers valuable and precise information regarding the surface-state dispersion within
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.107.136803