61 citations · 68 across the 2 of their papers we have counts for
9 papers
Energetic, electronic and magnetic properties of Mn-dimers on reconstructed (001) GaAs surfaces
M. Birowska, C. Śliwa, J. A. Majewski
We study energetic, magnetic, and electronic properties of diluted substitutional Mn-pairs on the reconstructed GaAs surfaces. The studies are based on first-principles cal…
Experimental determination of Rashba spin-orbit coupling in wurtzite -GaN:Si
W. Stefanowicz, R. Adhikari, T. Andrearczyk +5
Millikelvin magnetotransport studies are carried out on heavily -doped wurtzite GaN:Si films grown on semi-insulating GaN:Mn buffer layers by metal-organic vapor phase epitaxy.…
Theory of ferromagnetism driven by superexchange in dilute magnetic semiconductors
C. Simserides, J. A. Majewski, K. N. Trohidou +1
Magnetic properties of GaMnN are studied theoretically by employing a tight binding approach to determine exchange integrals characterizing the coupling betwee…
Phase diagram and critical behavior of the random ferromagnet
S. Stefanowicz, G. Kunert, C. Simserides +11
Molecular beam epitaxy has been employed to obtain Ga1-xMnxN films with x up to 10% and Curie temperatures T_C up to 13 K. The magnitudes of T_C and their dependence on x, T_C(x) ~…
Origin of low-temperature magnetic ordering in Ga1-xMnxN
M. Sawicki, T. Devillers, S. Gałȩski +9
By employing highly sensitive millikelvin SQUID magnetometry, the magnitude of the Curie temperature as a function of the Mn concentration x is determined for thoroughly characteri…
Origin of bulk uniaxial anisotropy in zinc-blende dilute magnetic semiconductors
M. Birowska, C. Sliwa, J. A. Majewski +1
It is demonstrated that the nearest neighbor Mn pair on the GaAs (001) surface has a lower energy for the [-110] direction comparing to the [110] case. According to the group theor…