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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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9 papers · 2 filters
Anomalous Ferromagnetism of Monatomic Co Wire at the Pt(111) Surface Step Edge
Alexander B. Shick, Frantishek Maca, Peter M. Oppeneer
A first-principles investigation of the anomalous ferromagnetism of a quasi-one-dimensional Co chain at the Pt(111) step edge is reported. Our calculations show that the symmetry b…
Superparamagnetism and Spin Glass Dynamics of Interacting Magnetic Nanoparticle Systems
Petra E. Jönsson
The physical properties of magnetic nanoparticles have been investigated with focus on the influence of dipolar interparticle interaction. For weakly coupled nanoparticles, thermod…
Landauer conductance of tunnel junctions: Strong impact from boundary conditions
Peter Zahn, Ingrid Mertig
We present model calculations for the Landauer conductance of tunnel junctions. The tunneling of free electrons through a rectangular potential barrier is considered. The conductan…
Electronic structure and magnetism of Mn doped GaN
B. Sanyal, O. Bengone, S. Mirbt
Mn doped semiconductors are extremely interesting systems due to their novel magnetic properties suitable for the spintronics applications. It has been shown recently by both theor…
Ferromagnetic materials in the zinc-blende structure
B. Sanyal, L. Bergqvist, O. Eriksson
New materials are currently sought for use in spintronics applications. Ferromagnetic materials with half metallic properties are valuable in this respect. Here we present the elec…
Spin Glasses: A Ghost Story
P. E. Jönsson, R. Mathieu, P. Nordblad +3
Extensive experimental and numerical studies of the non-equilibrium dynamics of spin glasses subjected to temperature or bond perturbations have been performed to investigate chaos…
Magnetic properties of GaMnAs single layers and GaInMnAs superlattices investigated at low temperature and high magnetic field
C. Hernandez, F. Terki, S. Charar +4
Magnetotransport properties of GaMnAs single layers and InGaMnAs/InGaAs superlattice structures were investigated at temperatures from 4 K to 300 K and magnetic fields up to 23 T t…
Nitrogen local electronic structure in Ga(In)AsN alloys by soft-X-ray absorption and emission: Implications for optical properties
V. N. Strocov, P. O. Nilsson, T. Schmitt +7
Soft-X-ray emission and absorption spectroscopies with their elemental specificity are used to determine the local electronic structure of N atoms in Ga(In)AsN diluted semiconducto…
First Principles Calculations of Fe on GaAs (100)
S. Mirbt, B. Sanyal, C. Isheden +1
We have calculated from first principles the electronic structure of 0.5 monolayer upto 5 monolayer thick Fe layers on top of a GaAs (100) surface. We find the Fe magnetic moment t…