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DPG

Dresden 2011 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 19: Poster I (Bio- and Molecular Magnetism/ Magnetic Particles and Clusters/ Micro- and Nanostructured Magnetic Materials/ Magnetic Materials/ Multiferroics/ Magnetic Shape Memory Alloys/ Electron Theory of Magntism/ Spincaloric Transport/ Magnetic Coupling and Exchange Bias/ Magnetization Dynamics/ Micromagnetism and Computational Magnetics)

MA 19.61: Poster

Dienstag, 15. März 2011, 10:45–13:00, P2

Structural and magnetic characterization of spinel films prepared by MAD — •Simon Slapka, Vasile Mosneaga, and Konrad Samwer — 1. Physikalisches Institut, Universität Göttingen

Spinels are known for a long time as magnetic materials, the oldest one (Fe3O4) used by the chinese as a compass. Spinels with multiferroic properties have been found (CoCr2O4).

In the case of manganese-doped spinel films spins are arrangend on an triangular lattice. The antiferromagnetic coupling causes magnetic frustration.

Unexpected dielectric properties have been found in thin films of Zn0.25Mn0.75Al2O4. The present study is adressed to the connection between spin frustration, magnetic properties and these unexpected dieletric properties.

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