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Oscillatory surface dichroism of an insulating topological insulator Bi2Te2Se
M. Neupane, S. Basak, N. Alidoust +16
Using circular dichroism-angle resolved photoemission spectroscopy (CD-ARPES), we report a study of the effect of angular momentum transfer between polarized photons and topologica…
Tuning the quantum oscillations of surface Dirac electrons in the topological insulator BiTeSe by liquid gating
Jun Xiong, Yuehaw Khoo, Shuang Jia +2
In BiTeSe, the period of quantum oscillations arising from surface Dirac fermions can be increased 6-fold using ionic liquid gating. At large gate voltages, the Fermi energ…
High-Field Shubnikov-de Haas Oscillations in the Topological Insulator BiTeSe
Jun Xiong, Yongkang Luo, YueHaw Khoo +3
We report measurements of the surface Shubnikov de Haas oscillations (SdH) on crystals of the topological insulator BiTeSe. In crystals with large bulk resistivity (4…
Effect of hydrostatic pressure on transport in the topological insulator BiTeSe
Yongkang Luo, Stephen Rowley, Jun Xiong +3
The Hall coefficient and resistivity of the topological insulator BiTeSe display a number of puzzling features vs. temperature . We propose a model that descri…
Quantum Oscillations in a Topological Insulator BiTeSe with Large Bulk Resistivity (6 cm)
Jun Xiong, A. C. Petersen, Dongxia Qu +2
We report the observation of prominent Shubnikov-de Haas oscillations in a Topological Insulator, BiTeSe, with large bulk resistivity (6 cm at 4 K). By fitting the SdH o…