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Spin Injection: Interface Resistance in Fe/Semiconductor Junctions Calculated from First Principles
Olaf Wunnicke, Phivos Mavropoulos, Peter H. Dederichs
We calculate the current spin polarisation and the interface resistance of Fe/GaAs and Fe/ZnSe (001) spin injection junctions from first principles, including also the possibility…
Slater-Pauling Behavior of the Half-Ferromagnetic Full-Heusler Alloys
I. Galanakis, P. H. Dederichs, N. Papanikolaou
Using the full-potential screened Korringa-Kohn-Rostoker method we study the full-Heusler alloys based on Co, Fe, Rh and Ru. We show that many of these compounds show a half-metall…
Ballistic Spin Injection and Detection in Fe/Semiconductor/Fe Junctions
Phivos Mavropoulos, Olaf Wunnicke, Peter H. Dederichs
We present {\it ab initio} calculations of the spin-dependent electronic transport in Fe/GaAs/Fe and Fe/ZnSe/Fe (001) junctions simulating the situation of a spin-injection experim…
Origin and Properties of the Gap in the Half-Ferromagnetic Heusler Alloys
I. Galanakis, P. H. Dederichs, N. Papanikolaou
We study the origin of the gap and the role of chemical composition in the half-ferromagnetic Heusler alloys using the full-potential screened KKR method. In the paramagnetic phase…
Ballistic Spin Injection from Fe(001) into ZnSe and GaAs
O. Wunnicke, Ph. Mavropoulos, R. Zeller +2
We consider the spin injection from Fe into ZnSe and GaAs in the ballistic limit. By means of the ab initio SKKR method we calculate the ground state properties of epitaxial Fe|ZnS…