6 papers · 1 filter
Solid phase epitaxy of ferromagnetic MnAs dots on GaMnAs layers
J. Sadowski, M. Adell, J. Kanski +6
Formation of MnAs quantum dots in a regular ring-like distribution has been found on MBE-grown (GaMn)As surfaces after low-temperature annealing under As capping. The Mn was suppli…
Thermoelectric studies of electronic properties of ferromagnetic GaMnAs layers
V. Osinniy, K. Dybko, A. Jedrzejczak +8
Thermoelectric power, electrical conductivity, and high field Hall effect were studied over a broad temperature range in ferromagnetic Ga(1-x)Mn(x)As epitaxial layers (0.015<x<0.06…
Magnetotransport and Domain Wall in Nanoconstriction of Ferromagnetic Semiconductor (Ga,Mn)As
T. Figielski, T. Wosinski, O. Pelya +6
We studied magnetoresistance (MR) of nanoconstrictions created in (Ga,Mn)As epilayers by O+ ion implantation. Original layers exhibit a negative MR that is plausibly caused by weak…
MnAs overlayer on GaN(0001)-(1x1) - its growth, morphology and electronic structure
B. J. Kowalski, I. A. Kowalik, R. J. Iwanowski +5
Spontaneous formation of grains has been observed for the MnAs layer grown by means of MBE on the GaN(0001)-(1x1) surface. Electronic structure of the system was investigated in si…
Magnetic properties of GaMnAs single layers and GaInMnAs superlattices investigated at low temperature and high magnetic field
C. Hernandez, F. Terki, S. Charar +4
Magnetotransport properties of GaMnAs single layers and InGaMnAs/InGaAs superlattice structures were investigated at temperatures from 4 K to 300 K and magnetic fields up to 23 T t…
Magnetic Properties of Short Period InGaMnAs/InGaAs Superlattices
J. Sadowski, R. Mathieu, P. Svedlindh +4
We have observed a paramagnetic-to-ferromagnetic phase transition in short period InGaMnAs/InGaAs superlattices. The thicknesses of magnetic InGaMnAs layers in the structures studi…