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MA: Fachverband Magnetismus

MA 39: Magnetic Particles

MA 39.9: Vortrag

Donnerstag, 10. März 2016, 11:45–12:00, H31

Solid state NMR - a powerful tool to characterize magnetic nanoparticle assemblies — •Franziska Hammerath^1,2, Markus Gellesch², Maik Scholz², Rasha Ghunaim², Maria Eleni Belesi², Alexey Alfonsov², Heike Schlörb², Silke Hampel², Sabine Wurmehl², and Bernd Büchner² — ¹Institute for Solid State Physics, Dresden Technical University, TU Dresden, 01062 Dresden, Germany — ²IFW Dresden, Institute for Solid State Research, PF 270116, 01171 Dresden, Germany

We present nuclear magnetic resonance (NMR) measurements on magnetic nanoparticles, most of them synthesized inside carbon nanotubes, with unary, binary and ternary precursor conditions. Our studies on Co, Fe, CoFe, CoGa, Co₂FeGa and Mn₃O₄ nanoparticles show that nuclear magnetic resonance is the method of choice to identify and quantify different chemical compositions, local environments and crystallographic structures of intermetallic magnetic nanoparticle assemblies. Advantages of this method compared to standard characterization methods such as powder X-ray diffraction or TEM-EDX will be discussed.