The most interesting experimental results obtained in studies of 2D and 3D topological
insulators (TIs) based on HgTe quantum wells and films are reviewed. In the case of 2D TIs …

We report a direct observation of temperature-induced topological phase transition between
the trivial and topological insulator states in an HgTe quantum well. By using a gated Hall …

Long-wavelength stimulated emission (SE) is studied in optically pumped HgCdTe quantum
well heterostructures with dielectric waveguides. Continuous temperature tuning of the …

We propose a minimal effective two-dimensional Hamiltonian for HgTe/CdHgTe quantum
wells (QWs) describing the side maxima of the first valence subband. By using the …

The search for room temperature quantum spin Hall insulators (QSHIs) based on widely
available materials and a controlled manufacturing process is one of the major challenges of …

Two-dimensional Dirac fermions in HgTe quantum wells close to the topological phase
transition can generate significant cyclotron emission that is magnetic field tunable in the …

We report on temperature-dependent terahertz spectroscopy of a three-layer
InAs/GaSb/InAs quantum well (QW) with inverted-band structure. The interband optical …

Collisions between electrons and holes can dominate the carrier scattering in clean
graphene samples in the vicinity of the charge neutrality point. While electron-hole limited …

We report on the observation of an unconventional structure of the quantum Hall effect
(QHE) in ap-type HgTe/Cd x Hg 1− x Te double quantum well (DQW) consisting of two HgTe …

HgTe quantum wells (QWs) are two-dimensional semiconductor systems that change their
properties at the critical thickness dc, corresponding to the band inversion and topological …