STM imaging of electronic waves on the surface of Bi2Te3 Topologically protected surface states and hexagonal warping effects

Z. Alpichshev, J. Analytis, J. Chu, I. Fisher, Y. Chen, Z. Shen, A. Fang, A. Kapitulnik, Physical Review Letters 104 (2010).


Journal Article | Published | English
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Abstract
Scanning tunneling spectroscopy studies on high-quality Bi2Te3 crystals exhibit perfect correspondence to angle-resolved photoemission spectroscopy data, hence enabling identification of different regimes measured in the local density of states (LDOS). Oscillations of LDOS near a step are analyzed. Within the main part of the surface band oscillations are strongly damped, supporting the hypothesis of topological protection. At higher energies, as the surface band becomes concave, oscillations appear, dispersing with a wave vector that may result from a hexagonal warping term.
Publishing Year
Date Published
2010-01-04
Journal Title
Physical Review Letters
Volume
104
Issue
1
IST-REx-ID

Cite this

Alpichshev Z, Analytis J, Chu J, et al. STM imaging of electronic waves on the surface of Bi2Te3 Topologically protected surface states and hexagonal warping effects. Physical Review Letters. 2010;104(1). doi:10.1103/PhysRevLett.104.016401
Alpichshev, Z., Analytis, J., Chu, J., Fisher, I., Chen, Y., Shen, Z., … Kapitulnik, A. (2010). STM imaging of electronic waves on the surface of Bi2Te3 Topologically protected surface states and hexagonal warping effects. Physical Review Letters, 104(1). https://doi.org/10.1103/PhysRevLett.104.016401
Alpichshev, Zhanybek, James Analytis, Jiunhaw Chu, Ian Fisher, Yulin Chen, Zhixun Shen, Aiping Fang, and Aharon Kapitulnik. “STM Imaging of Electronic Waves on the Surface of Bi2Te3 Topologically Protected Surface States and Hexagonal Warping Effects.” Physical Review Letters 104, no. 1 (2010). https://doi.org/10.1103/PhysRevLett.104.016401.
Z. Alpichshev et al., “STM imaging of electronic waves on the surface of Bi2Te3 Topologically protected surface states and hexagonal warping effects,” Physical Review Letters, vol. 104, no. 1, 2010.
Alpichshev Z, Analytis J, Chu J, Fisher I, Chen Y, Shen Z, Fang A, Kapitulnik A. 2010. STM imaging of electronic waves on the surface of Bi2Te3 Topologically protected surface states and hexagonal warping effects. Physical Review Letters. 104(1).
Alpichshev, Zhanybek, et al. “STM Imaging of Electronic Waves on the Surface of Bi2Te3 Topologically Protected Surface States and Hexagonal Warping Effects.” Physical Review Letters, vol. 104, no. 1, American Physical Society, 2010, doi:10.1103/PhysRevLett.104.016401.

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