Defect-induced Dzyaloshinskii-Moriya interaction in iron oxide nanoparticles
Magnetic nanoparticles possess unique tunable properties and can be manipulated by external magnetic fields, which make them ideal candidates for various applications. Recently, we proposed defect-engineering of iron oxide nanoparticles as a new research avenue to optimize the particle properties for life science applications. For defect-rich bulk ferromagnets, we could already show the generic relevance of the defect-induced Dzyaloshinskii¿Moriya interaction (DMI), suggesting a potential for the creation of local incommensurate spin textures. To verify the existence of nouniform spin textures we performed half-polarized SANS measurements, that is, SANSPOL while applying a symmetry-breaking magnetic field. In this experiment we want to use SANSPOL to investigate if the structural defects within iron oxide nanoparticles also cause DMI which would show up as chiral terms in the residual SANSPOL cross section. We will mainly investigate defect-rich particle systems. These particles excel at magnetic hyperthermia, and we are confident that the high density of structural defects causes inconsummerate spin textures within the particles, similar to defect-rich bulk ferromagnets.
Please note that you will need to login with your ILL credentials to download the data.
Download DataThe recommended format for citing this dataset in a research publication is in the following format:
BENDER Philipp; BERSWEILER Mathias; DISCH Sabrina; HONECKER Dirk; LAK Aidin; E. M. Jefremovas and STEINKE Nina-Juliane. (2021). Defect-induced Dzyaloshinskii-Moriya interaction in iron oxide nanoparticles. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-53-311
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.