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L. Szunyogh:
"Physical properties of magnetic nanostructures";
Vortrag: Seminar Institut für Allgemeine Physik (IAP), TU Wien; 21.03.2006.

The enormous development in monitoring, fabricating and manipulating magnetic nanostructures on the atomic scale has already raised quite a number of applications in magnetic recording and sensor technology. In order to keep this progress alive it is demanding to understand the underlying physics in the basis of a suitable quantum mechanical treatment and develop computational tools that even allow for designing novel nanostructures useful for future applications. In the present talk I will give a short review on the research performed recently in this field at the CMS TU-Vienna. In particular, I will focus on three topics: (i) spin-polarized states confined to impurities and quantum corrals on a Cu(111) surface, (ii) magnetic structure and anisotropy of small nanoparticles and (iii) transport through atomic nanocontacts. All these studies are based on fully relativistic ab initio calculations in terms of an embedding technique combined with the Screened Korringa-Kohn-Rostoker method