120 citations · 340 across the 7 of their papers we have counts for
7 papers
Disorder-induced phase transition in Dirac systems beyond the linear approximation
Sergey S. Krishtopenko, Mauro Antezza, Frédéric Teppe
By using the self-consistent Born approximation, we investigate disorder effect induced by the short-range impurities on the band-gap in two-dimensional Dirac systems with the high…
Suppressed Auger scattering and tunable light emission of Landau-quantized massless Kane electrons
D. B. But, M. Mittendorff, C. Consejo +9
The Landau level laser has been proposed a long time ago as a unique source of monochromatic radiation, widely tunable in the THz and infrared spectral ranges using an externally a…
Landau level spectroscopy of valence bands in HgTe quantum wells: Effects of symmetry lowering
L. S. Bovkun, A. V. Ikonnikov, V. Ya. Aleshkin +8
Landau level spectroscopy has been employed to probe the electronic structure of the valence band in a series of p-type HgTe/HgCdTe quantum wells with both normal and inverted orde…
Temperature-driven single-valley Dirac fermions in HgTe quantum wells
M. Marcinkiewicz, S. Ruffenach, S. S. Krishtopenko +13
We report on temperature-dependent magnetospectroscopy of two HgTe/CdHgTe quantum wells below and above the critical well thickness . Our results, obtained in magnetic fields…
Temperature-dependent magnetospectroscopy of HgTe quantum wells
A. V. Ikonnikov, S. S. Krishtopenko, O. Drachenko +16
We report on magnetospectroscopy of HgTe quantum wells in magnetic fields up to 45 T in temperature range from 4.2 K up to 185 K. We observe intra- and inter-band transitions from…
Phase transitions in two tunnel-coupled HgTe quantum wells. Bilayer graphene analogy and beyond
S. S. Krishtopenko, W. Knap, F. Teppe
HgTe quantum wells possess remarkable physical properties as for instance the quantum spin Hall state and the 'single-valley' analog of graphene, depending on their layer thickness…
Magneto-optical signature of massless Kane electrons in Cd3As2
A. Akrap, M. Hakl, S. Tchoumakov +21
We report on optical reflectivity experiments performed on Cd3As2 over a broad range of photon energies and magnetic fields. The observed response clearly indicates the presence of…