Abstract: Use of spin-resolved POLARIS experiments will reveal the influence of dipolar interactions on the spatial magnetization distribution in Fe-oxide (Fe3O4 core/Fe2O3 shell) Nanoparticles with two different diameters (d = 10-11 nm, d = 5 nm) and hence interrelate dipolar interactions on the nanoscopic and macroscopic level. This is of outmost importance when defining parameters to get a standardization of these nanometric compounds for biomedical applications.

Experiment Parameters Environment temperature 300 Experiment energy 6 [A] Experiment moment 0.005-0.5 [1/nm] Experiment res energy 10% Experiment res moment - Sample Parameters Formula S1 (Fe2O3/Fe3O4) S2 (Fe2O3/Fe3O4) S3p (Fe2O3/Fe3O4) S3l (Fe2O3/Fe3O4+H2O)

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