Two dimensional topological insulator in quantizing magnetic fields

Abstract

The effect of quantizing magnetic field on the electron transport is investigated in a two dimensional topological insulator (2D TI) based on a 8 nm (013) HgTe quantum well (QW). The local resistance behavior is indicative of a metal-insulator transition at $B\approx 6$ T. On the whole the experimental data agrees with the theory according to which the helical edge states transport in a 2D TI persists from zero up to a critical magnetic field $B_c$ after which a gap opens up in the 2D TI spectrum.

5 pages, 4 figures

References in corpus (6)

• Quantum Spin Hall Effect and Topological Phase Transition in HgTe Quantum Wells
• Quantum Spin Hall Insulator State in HgTe Quantum Wells
• The Quantum Spin Hall Effect: Theory and Experiment
• Magnetic properties of HgTe quantum wells
• Fine structure of "zero-mode" Landau levels in HgTe/HgCdTe quantum wells
• Linear magnetoresistance in HgTe quantum wells

Cited by in corpus (3)

• Realistic picture of helical edge states in HgTe quantum wells
• Many-particle effects in optical transitions from zero-mode Landau levels in HgTe quantum wells
• Many-particle hybridization of optical transitions from zero-mode Landau levels in HgTe quantum wells