Fermi-surface map of the n-doped three-dimensional topological insulator Bi₂Te₃ showing a cross-section contour of the warped surface state band.

From the article:

STM Imaging of Electronic Waves on the Surface of ${\mathrm{Bi}}_2{\mathrm{Te}}_3$: Topologically Protected Surface States and Hexagonal Warping Effects
Zhanybek Alpichshev, J. G. Analytis, J.-H. Chu, I. R. Fisher, Y. L. Chen, Z. X. Shen, A. Fang, and A. Kapitulnik
Phys. Rev. Lett. 104, 016401 (2010)

View Issue Table of Contents