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

Jason N. Hancock; J. L. M. van Mechelen; Alexey B. Kuzmenko; Dirk van der Marel; Cristoph Brüne; Elina G. Novik; Georgy V. Astakhov; Hartmut Buhmann; Laurens W. Molenkamp

doi:10.1103/PhysRevLett.107.136803

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

Mesoscale and Nanoscale Physics 2011-10-06 v2 Materials Science Strongly Correlated Electrons

Authors: Jason N. Hancock , J. L. M. van Mechelen , Alexey B. Kuzmenko , Dirk van der Marel , Cristoph Brüne , Elina G. Novik , Georgy V. Astakhov , Hartmut Buhmann , Laurens W. Molenkamp

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Abstract

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 <1 meV of the Fermi level. The technique is highly suitable for the pursuit of the topological magnetoelectric effect and axion electrodynamics.

Keywords

topological insulator topological insulators

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@article{arxiv.1105.0884,
  title  = {Surface state charge dynamics of a high-mobility three dimensional topological insulator},
  author = {Jason N. Hancock and J. L. M. van Mechelen and Alexey B. Kuzmenko and Dirk van der Marel and Cristoph Brüne and Elina G. Novik and Georgy V. Astakhov and Hartmut Buhmann and Laurens W. Molenkamp},
  journal= {arXiv preprint arXiv:1105.0884},
  year   = {2011}
}

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Published version, online Sept 23, 2011

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

Abstract

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