5 papers
Determination of the Fermi Level Position in Dilute Magnetic GaMnN Films
Stefan Barthel, Gerd Kunert, Mariuca Gartner +6
We report on a combined theoretical and experimental determination of the Fermi level position in wurtzite GaMnN films with and as grown by molecular…
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) ~…
GaMnN epitaxial films with high magnetization
Gerd Kunert, Sylwia Dobkowska, Tian Li +10
We report on the fabrication of pseudomorphic wurtzite GaMnN grown on GaN with Mn concentrations up to 10% using molecular beam epitaxy. According to Rutherford backscattering the…
High-reflectivity broadband distributed Bragg reflector lattice matched to ZnTe
W. Pacuski, C. Kruse, S. Figge +1
We report on the realization of a high quality distributed Bragg reflector with both high and low refractive index layers lattice matched to ZnTe. Our structure is grown by molecul…
Optical Properties and Modal Gain of InGaN Quantum Dot Stacks
Joachim Kalden, Kathrin Sebald, Juergen Gutowski +4
We present investigations of the optical properties of stacked InGaN quantum dot layers and demonstrate their advantage over single quantum dot layer structures. Measurements were…