Interplay of Chiral and Helical States in a Quantum Spin Hall Insulator Lateral Junction
Interplay of Chiral and Helical States in a Quantum Spin Hall Insulator Lateral Junction
We study the electronic transport across an electrostatically-gated lateral junction in a HgTe quantum well, a canonical 2D topological insulator, with and without applied magnetic field. We control carrier density inside and outside a junction region independently and hence tune the number and nature of 1D edge modes propagating in …