Excitation of a topological insulator by a high‐frequency electric field of a laser radiation
leads to a dc electric current in the helical edge channel whose direction and magnitude are …

We report on the observation of a circular photogalvanic current excited by terahertz laser
radiation in helical edge channels of two-dimensional (2D) HgTe topological insulators (TIs) …

We consider a superlattice formed by tunnel-connected identical holes, periodically placed
in a two-dimensional topological insulator. We study tunneling transport through helical …

We study the phase diagram of a model quantum spin Hall system as a function of band
inversion and band-coupling strength, demonstrating that when band hybridization is weak …

We consider the effects of electron scattering off a quantum magnetic impurity on the current–
voltage characteristics of the helical edge of a two-dimensional topological insulator. We …

Helical edge modes of 2D topological insulators are supposed to be protected from time-
reversal invariant elastic backscattering. Yet substantial deviations from the perfect …

We discuss transport through an interferometer formed by the helical edge states of a
quantum spin Hall insulator. Focusing on the effects induced by a strong magnetic impurity …

We review recent studies of the spin-dependent tunneling transport via an Aharonov–Bohm
interferometer (ABI) formed by helical edge states. We focus on the experimentally relevant …

Magnetic impurities with sufficient anisotropy could account for the observed strong
deviation of the edge conductance of 2D topological insulators from the anticipated …

We study a superlattice formed by tunnel-coupled identical antidots periodically situated in a
two-dimensional topological insulator placed in a magnetic field. The superlattice spectrum …