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Verhandlungen
Verhandlungen
DPG

Berlin 2008 – scientific programme

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MA: Fachverband Magnetismus

MA 32: Postersession II: Spinstruct./Phase Trans. (1-10); Spinelectronics (11-15); Thin Films (16 - 36); Particles/Clusters (37-45); Multiferroics (46-54); Spindynamics/Spin Torque (55 - 76); Post Deadlines (77-79)

MA 32.43: Poster

Friday, February 29, 2008, 11:15–14:00, Poster E

On the magnetic properties of composites containing CoFe2O4 nano-particlesBéatrice Hallouet, •Carsten Volz, and Rolf Pelster — Universität des Saarlandes, Fachrichtung 7.2 Experimentalphysik, Campus E 2.6 , D-66123 Saarbrücken, Germany

We investigate ferrofluids consisting of nanoscaled single-domain magnetic particles (CoFe2O4, diameter 5-10nm) in an ethandiole matrix. These are characterized by means of temperature-dependent broadband magnetic spectroscopy up to 6 GHz. We focus on the behavior of the magnetic resonances, especially on the question how these depend on the microstructure, i. e. on the spatial distribution and the orientation of the particles. Non-random systems are obtained by applying a static magnetic field during sample preparation.

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