Regensburg 2010 – scientific programme
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O: Fachverband Oberflächenphysik
O 52: Graphene II
O 52.7: Talk
Wednesday, March 24, 2010, 16:30–16:45, H31
An ab initio study of graphenen nanoribbons doped with boron clusters — Cem Özdogan1, •Jens Kunstmann2, Alexander Quandt3, and Holger Fehske3 — 1Department of Computer Engineering, Cankaya University, Ankara, Turkey — 2Institute for Materials Science and Max Bergmann Center of Biomaterials, Dresden University of Technology, Germany — 3Institut für Physik, Ernst-Moritz-Arndt-Universität Greifswald, Germany
We present results from an ab initio study of graphene and graphene nanoribbons (GNR) doped with B7 clusters. We already showed that this system might serve as a blueprint for the controlled layout of graphene based nanodevices, where the semiconducting properties are supplemented by parts of the graphene matrix and the metallic wiring is provided by chains of boron clusters [1,2]. We study how the B7 clusters alter the physical properties of GNRs. A special focus is put on the magnetic properties of zigzag GNRs. [1] A. Quandt, C. Özdoğan, J. Kunstmann, and H. Fehske, Nanotechnology 19, 335707 (2008). [2] A. Quandt, C. Özdoğan, J. Kunstmann, and H. Fehske, phys. stat. solidi (b) 245, 2077 (2008).