Metastable Skyrmions in Zn-Doped Cu2OSeO3
Skyrmions are vortex-like arrangements of magnetic moments that constitute a completely new magnetic topology, present only in certain chiral magnetic materials and occurring only in well-defined temperature and magnetic field conditions. Skyrmions are currently the focus of intense research due to their potential application in future data-storage devices. As the list of skyrmion materials expands, the focus is on understanding the relationship between the skyrmion lattice and the underlying crystal structure; on the development of techniques to control the properties of their host materials, and the ability to directly manipulate the spin texture. We propose to perform SANS measurements on Zn doped Cu2OSeO3. The sample has already been characterised by the proposers via microwave absorption and resonant x-ray scattering. These measurements demonstrated the existence of a metastable skyrmion state that is stabilised by the increasing of Zn doping. At the same time, a strong directional dependence of the stability of this metastable state has been observed that was not fully investigated, and SANS is the ideal technique to probe such behaviour.
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CRISANTI Marta; BALAKRISHNAN Geetha; Christopher Barker; M. T. Birch; CUBITT Robert; HATTON Peter D.; PAUL Donald Mckenzie; STEFANCIC Ales and Murray N Wilson. (2018). Metastable Skyrmions in Zn-Doped Cu2OSeO3. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-41-982
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