Berlin 2012 – wissenschaftliches Programm
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MM: Fachverband Metall- und Materialphysik
MM 17: Poster Session
MM 17.5: Poster
Montag, 26. März 2012, 17:00–19:00, Poster B
New deposition concept for the precise tailoring of nanocomposites with a gas aggregation cluster source — •Björn Gojdka1, Vladimir Zaporojtchenko1, Thomas Strunskus1, Viktor Hrkac2, Jian Xiong1, Lorenz Kienle2, and Franz Faupel1 — 1Institute for Materials Science (Multicomponent Materials), Faculty of Engineering, Christian-Albrechts-University of Kiel, Kaiserstraße 2, D-24143 Kiel, Germany — 2Institute for Materials Science (Synthesis and Real structure), Faculty of Engineering, Christian-Albrechts-University of Kiel, Kaiserstraße 2, D-24143 Kiel, Germany
Nanocomposites with embedded magnetic particles are of special interest due to their unique properties which are, for example, highly relevant for data storage or high-frequency applications. However, in order to tailor a nanocomposite for a certain application, advanced process control is necessary. In addition, during deposition most magnetic materials react with a non-inert process atmosphere or the matrix constituents, thus degrading the ferromagnetic properties of the nanoparticles in the composite. We present a new concept for the precise tailoring of a wide variety of nanogranular composites based on a modified co-sputtering concept with a gas aggregation cluster source. To demonstrate the feasibility of the concept, magnetic cobalt nanoparticles are embedded in a dielectric matrix. Subsequently, the chemical, magnetic and structural properties of the composite were investigated by energy dispersive x-ray spectroscopy, vibrating sample magnetometry and transmission electron microscopy.