6 papers
Hybrid reciprocal space for X-ray diffraction in epitaxic layers
Jarek Z. Domagala, Sergio L. Morelhao
Even after several decades of systematic usage of X-ray diffraction as one of the major analytical tool for epitaxic layers, the vision of the reciprocal space of these materials i…
High ferromagnetic phase transition temperatures in GaMnAs layers annealed under arsenic capping
J. Sadowski, J. Z. Domagala, V. Osinniy +7
Thin GaMnAs layers grown by molecular beam epitaxy were subjected to low-temperature post growth annealing, with an amorphous arsenic capping layer deposited on the GaMnAs surface…
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…
Post-growth annealing of GaMnAs under As capping - an alternative way to increase Tc
M. Adell, V. Stanciu, J. Kanski +7
We demonstrate that in situ post-growth annealing of GaMnAs layers under As capping is adequate for achieving high Curie temperatures (Tc) in a similar way as ex situ annealing in…
The Effect of Mn Interstitials on the Lattice Parameter of Ga(1-x)Mn(x)As
I. Kuryliszyn-Kudelska, J. Z. Domagala, T. Wojtowicz +4
Structural investigation of as-grown as well as annealed Ga(1-x)Mn(x)As epilayers was carried out using high resolution X-ray diffraction (XRD) measurements for a wide range of Mn…
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…