Abstract
We report measurements of the surface Shubnikov-de Haas oscillations (SdH) on crystals of the topological insulator Bi 2Te 2Se. In crystals with large bulk resistivity (∼4 Ωcm at 4 K), we observe ∼15 surface SdH oscillations (to the n=1 Landau level) in magnetic fields B up to 45 T. Extrapolating to the limit 1/B→0, we confirm the 12-shift expected from a Dirac spectrum. The results are consistent with a very small surface Landé g factor.
Original language | English (US) |
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Article number | 045314 |
Journal | Physical Review B - Condensed Matter and Materials Physics |
Volume | 86 |
Issue number | 4 |
DOIs | |
State | Published - Jul 17 2012 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics