Atomic and Magnetic Structure of the Interface in Multilayers

Temperature dependence of the magnetic properties of Fe/Ag vacuum evaporated multilayers was studied in a wide range of layer thickness. For Fe thickness larger than 1 nm continuous magnetic layers can be found, but its hyperfine field is significantly lower than that of pure α-Fe at elevated temperatures. It is attributed to a decrease of the Curie temperature due to Ag impurities in the Fe layer. Below 1 nm Fe thickness magnetic relaxation and the formation of a granular alloy with 35 T average hyperfine field was observed. Magnetoresistance results indicate the presence of Fe clusters in the Ag matrix, as well. This revised version was published online in August 2006 with corrections to the Cover Date.     

Diffusion amorphization and interface properties of FeB multilayers

Received: 3 September 1996/Accepted: 6 January 1997     

Studien in Immunochemie. 21. Mitt.: Die Produkte des Abbaus von Blutgruppen-spezifischen Substanzen durch Ficin und Papain

Ohne Zusammenfassung     

On the structure of aqueous LiCl solutions

The structure of highly concentrated aqueous lithium chloride solutions was investigated by the Reverse Monte Carlo method. Two total structure factors, obtained from neutron and x-ray diffraction experiments, were applied as input information. From the resulting particle configurations, partial pair correlation functions, coordination numbers and cosine distributions of bond angles have been determined. It was found that, in accordance with common-sense expectations, the hydrogen bonded network of water molecules is breaking up continuously as the concentration of the electrolyte increases. The hydration shell of the cations becomes more and more distorted as concentration grows whereas the hydration structure of the anions appears to be nearly invariant. Ion-pairing was not detected even at the highest salt concentration.     

On the Solidification Particularities of the Opaque and Semi-Transparent Crystals Obtained by Bridgman Method

The effect of some growth conditions on the solidification process of the semitransparent and opaque materials grown by the vertical Bridgman method are studied using the finite-element analysis.     

Unusual atomic arrangements in amorphous silicon

The existence of small bond angles (like those of triangles and squares) in amorphous silicon networks were studied by the tight-binding molecular dynamics method, by analyzing the statistical data of Si-Si-Si fragments inside large molecules, and also by the Reverse Monte-Carlo simulation method. The influence of small bond angles on the electronic density of states was revealed.     

Hamiltonian reductions of free particles under polar actions of compact Lie groups

We investigate classical and quantum Hamiltonian reductions of free geodesic systems of complete Riemannian manifolds. We describe the reduced systems under the assumption that the underlying compact symmetry group acts in a polar manner in the sense that there exist regularly embedded, closed, connected submanifolds intersecting all orbits orthogonally in the configuration space. Hyperpolar actions on Lie groups and on symmetric spaces lead to families of integrable systems of the spin Calogero-Sutherland type. __________ Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 155, No. 1, pp. 161–176, April, 2008.