1 research outputs found
Investigations of the size distribution and magnetic properties of nanoparticles of Cu<inf>2</inf>OSeO<inf>3</inf>
Skyrmions in confined geometries have been a subject of increasing interest
due to the different properties that they exhibit compared to their bulk
counterparts. In this study, nanoparticles of skyrmion-hosting
have been synthesised using a precipitation
method followed by thermal treatment. This enables us to produce nanoparticles
whose mean size varies from tens of nanometers to a few micrometers by varying
the temperature and duration of the thermal decomposition of the precursor.
These sizes span the ~nm diameter of skyrmions in
, allowing investigations into how the magnetic
state changes when the size of the geometrical confinement is similar to and
smaller than the size of an isolated magnetic skyrmion. AC susceptibility
measurements performed on nanoparticles with a size distribution from 15 to 250
nm show a change in the magnetic phase diagram compared to bulk