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Measuring similarity between nodes has been an issue of extensive research in the social network analysis literature. In this paper, we construct a new measure of similarity between nodes based on the game-theoretic interaction index (Grabisch and Roubens, 1997). Despite the fact that, in general, this index is computationally challenging, we show that in… (More)
We present a unified interpretation of experimentally observed magnetic circular dichroism (MCD) in the ferromagnetic semiconductor (Ga,Mn)As, based on theoretical arguments, which demonstrates that MCD in this material arises primarily from a difference in the density of spin-up and spin-down states in the valence band brought about by the presence of the… (More)
Rapid three-dimensional imaging of defect distributions using a high-intensity positron microbeam Appl. Abstract. To better understand the mechanism of the reported " quasi-ferromagnetism " observed in Si ions self-implanted or irradiated silicon, we carry out high resolution transmission electron microscopy (HRTEM), magnetization measurements using… (More)
The paper presents the results of the numerical analysis of various kinds of photonic crystal structures, such as 3 dB couplers and meander-lines, connected to photonic crystal waveguides and dielectric waveguides. The devices are modelled by the method of lines (MoL) with Floquet's theorem.
The authors study TiO/sub 2/ layers produced by Reactive Pulse Plasma (RPP) deposition on semiconductor substrates. The layers have been investigated both in terms of structure and electrophysical properties. The thickness and refractive index, the structure and the chemical composition were examined by ellipsometry, SEM and SIMS, respectively. The… (More)