We report the magnetothermopower measurements of the nonmetallic topological insulator Bi2Te3 in magnetic fields up to 35 T. Quantum oscillations arising from surface states are observed in both thermoelectric and conductivity tensors. The inferred surface thermopower has a peak magnitude ∼1mV/K possibly as a result of surface electron and bulk phonon interaction. At the n=1 Landau level, we resolve additional quantum oscillations signaling Landau sublevels.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)