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cond-mat.mtrl-sci2005
Effect of annealing on the depth profile of hole concentration in (Ga,Mn)As
W. Limmer, A. Koeder, S. Frank +8
The effect of annealing at 250 C on the carrier depth profile, Mn distribution, electrical conductivity, and Curie temperature of (Ga,Mn)As layers with thicknesses > 200 nm, grown…
cond-mat.mtrl-sci2003
Enhancement of the Curie temperature in GaMnAs/InGaMnAs superlattices
A. Koeder, W. Limmer, S. Frank +6
We report on an enhancement of the Curie temperature in GaMnAs/InGaMnAs superlattices grown by low-temperature molecular beam epitaxy, which is due to thin InGaMnAs or InGaAs films…
cond-mat.mtrl-sci2002
Curie temperature and carrier concentration gradients in MBE grown GaMnAs layers
A. Koeder, S. Frank, W. Schoch +10
We report on detailed investigations of the electronic and magnetic properties of ferromagnetic GaMnAs layers, which have been fabricated by low-temperature molecular-beam epitaxy.…