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10 papers · 2 filters
Ferromagnetic GaMnAs/GaAs superlattices - MBE growth and magnetic properties
J. Sadowski, R. Mathieu, P. Svedlindh +9
We have studied the magnetic properties of (GaMnAs)m/(GaAs)n superlattices with magnetic GaMnAs layers of thickness between 8 and 16 molecular layers (ML) (23-45 Å), and with nonma…
Photoemission studies of GaMnAs: Mn-concentration dependent properties
H. Asklund, L. Ilver, J. Kanski +2
Using angle-resolved photoemission, we have investigated the development of the electronic structure and the Fermi level pinnning in GaMnAs with Mn concentrations in…
Light and electric field control of ferromagnetism in magnetic quantum structures
H. Boukari, P. Kossacki, M. Bertolini +6
A strong influence of illumination and electric bias on the Curie temperature and saturation value of the magnetization is demonstrated for semiconductor structures containing a mo…
Ferromagnetism of magnetic semiconductors--Zhang-Rice limit
T. Dietl, F. Matsukura, H. Ohno
It is suggested that p-d hybridization contributes significantly to the hole binding energy E_b of Mn acceptors in III-V compounds, leading in an extreme case to the formation of Z…
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…
Magnetic domains in III-V magnetic semiconductors
T. Dietl, Jürgen König, A. H. MacDonald
Recent progress in theoretical understanding of magnetic anisotropy and stiffness in III-V magnetic semiconductors is exploited for predictions of magnetic domain characteristics a…