204 citations · 341 across the 6 of their papers we have counts for
6 papers
Disorder suppression and precise conductance quantization in constrictions of PbTe quantum wells
G. Grabecki, J. Wrobel, T. Dietl +7
Conductance quantization was measured in submicron constrictions of PbTe, patterned into narrow,12 nm wide quantum wells deposited between PbEuTe barriers. Becaus…
In-plane uniaxial anisotropy rotations in (Ga,Mn)As thin films
M. Sawicki, K-Y. Wang, K. W. Edmonds +9
We show, by SQUID magnetometry, that in (Ga,Mn)As films the in-plane uniaxial magnetic easy axis is consistently associated with particular crystallographic directions and that it…
Unidirectional Transmission of Electrons in a Magnetic Field Gradient
G. Grabecki, J. Wrobel, K. Fronc +7
The work presents an experimental demonstration of time-reversal asymmetry of electron states propagating along boundary separating areas with opposite magnetic fields. For this pu…
Ising Quantum Hall Ferromagnet in Magnetically Doped Quantum Wells
J. Jaroszynski, T. Andrearczyk, G. Karczewski +7
We report on the observation of the Ising quantum Hall ferromagnet with Curie temperature as high as 2 K in a modulation-doped (Cd,Mn)Te heterostructure. In this system field…
Effects of Spin Polarization on Electron Transport in Modulation Doped Cd(1-x)Mn(x)Te/Cd(1-y)Mg(y)Te:I Heterostructures
T. Andrearczyk, J. Jaroszynski, G. Karczewski +6
We examine and identify magnetoresistance mechanisms in 2D system containing a sizable concentration of magnetic ions. We argue that some of these mechanisms can serve as a tool to…
Quantum ballistic transport in constrictions of n-PbTe
G. Grabecki, J. Wrobel, T. Dietl +7
Conductance of submicron constrictions of PbTe:Bi was studied up to 8T and between 4.2K and 50mK. The structures were fabricated by electron beam lithography and chemical etching o…