53 citations · 104 across the 6 of their papers we have counts for
6 papers
The photoresponse of a two-dimensional electron gas at the second harmonic of the cyclotron resonance
M. Białek, M. Czapkiewicz, J. Wróbel +2
Terahertz spectroscopy experiments at magnetic fields and low temperatures were carried out on samples of different gate shapes processed on a high electron mobility GaAs/AlGaAs he…
Plasmonic terahertz detectors based on a high-electron mobility GaAs/AlGaAs heterostructure
M. Białek, A. M. Witowski, M. Orlita +6
In order to characterize magnetic-field (B) tunable THz plasmonic detectors, spectroscopy experiments were carried out at liquid helium temperatures and high magnetic fields on dev…
Nonlocal resistance and its fluctuations in microstructures of band-inverted HgTe/(Hg,Cd)Te quantum wells
G. Grabecki, J. Wróbel, M. Czapkiewicz +10
We investigate experimentally transport in gated microsctructures containing a band-inverted HgTe/Hg_{0.3}Cd_{0.7}Te quantum well. Measurements of nonlocal resistances using many c…
Evidence for Charging Effects in CdTe/CdMgTe Quantum Point Contacts
M. Czapkiewicz, V. Kolkovsky, P. Nowicki +4
Here we report on fabrication and low temperature magnetotransport measurements of quantum point contacts patterned from a novel two-dimensional electron system - CdTe/CdMgTe modul…
Quantum effects in linear and non-linear transport of T-shaped ballistic junction
J. Wrobel, P. Zagrajek, M. Czapkiewicz +6
We report low-temperature transport measurements of three-terminal T-shaped device patterned from GaAs/AlGaAs heterostructure. We demonstrate the mode branching and bend resistance…
0.7-anomaly and magnetotransport of disordered quantum wires
M. Czapkiewicz, P. Zagrajek, J. Wrobel +6
The unexpected "0.7" plateau of conductance quantisation is usually observed for ballistic one-dimensional devices. In this work we study a quasi-ballistic quantum wire, for which…