335 citations · 4.4k across the 103 of their papers we have counts for
5 papers · 2 filters
Interplay of bulk and edge states in transport of two-dimensional topological insulators
R. W. Reinthaler, E. M. Hankiewicz
We study transport in two-terminal metal/quantum spin-Hall insulator (QSHI)/metal junctions. We show that the conductance signals originating from the bulk and the edge contributio…
Spin polarization of the quantum spin Hall edge states
Christoph Brüne, Andreas Roth, Hartmut Buhmann +5
While the helical character of the edge channels responsible for charge transport in the quantum spin Hall regime of a two-dimensional topological insulator is by now well establis…
Two-dimensional topological insulators in quantizing magnetic fields
G. Tkachov, E. M. Hankiewicz
Two-dimensional topological insulators are characterized by gapped bulk states and gapless helical edge states, i.e. time-reversal symmetric edge states accommodating a pair of cou…
Weak antilocalization in HgTe quantum wells and topological surface states: Massive versus massless Dirac fermions
G. Tkachov, E. M. Hankiewicz
HgTe quantum wells and surfaces of three-dimensional topological insulators support Dirac fermions with a single-valley band dispersion. In the presence of disorder they experience…
Backscattering of Dirac fermions in HgTe quantum wells with a finite gap
G. Tkachov, C. Thienel, V. Pinneker +5
The density-dependent mobility of n-type HgTe quantum wells with inverted band ordering has been studied both experimentally and theoretically. While semiconductor heterostructures…