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Conferences > EQEC > 2019 > eg_3 > eg_3_4
  • 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 2019),
  • paper eg_3_4

Nanoscale mid-infrared near-field tomography of topological insulator surfaces

Fabian Mooshammer, Fabian Sandner, Markus A. Huber, Martin Zizlsperger, Helena Weigand, Markus Plankl, Christian Weyrich, Martin Lanius, Jörn Kampmeier, Gregor Mussler, Detlev Grützmacher, Jessica L. Boland, Tyler L. Cocker, and Rupert Huber

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Abstract

Three-dimensional topological insulators (TIs) have become an interesting platform for future high-speed electronics. The massless Dirac fermions in topologically protected surface states (TSSs) feature a chiral spin texture, which gives rise to inherently low scattering rates [1,2]. However, an additional two-dimensional electron gas (2DEG) with finite mass at TI surfaces can coexist under ambient conditions [3] owing to band bending effects.

© 2019 IEEE

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