26–30 Aug 2019
Universität Zürich
Europe/Zurich timezone

【672】Crystallite size dependency on magnetic phase diagram of Cu2OSeO3

28 Aug 2019, 19:00
1h 30m
Lichthof

Lichthof

Poster Skyrmions in magnetic materials Poster Session

Speaker

Priya Ranjan Baral (EPFL)

Description

Due to their promising technological applications, magnetic Skyrmions in Chiral magnets, such as Cu$_2$OSeO$_3$, have been the center of attention of the scientific community. By manipulating the crystallite size in the range of a single Skyrmion (62nm), it could be interesting to see if the magnetic phase diagram can be tuned. We have employed solution growth techniques to have controllable size of nanocrystals varying from 35nm to 300nm. The size-specific magnetic phase diagram of nanoparticles has been explored using DC magnetization, AC-susceptibility and Small Angle Neutron Scattering studies. Our experimental results have been further verified using micro-magnetic simulations. We observe a systematical change in the magnetic phase diagram with the change in particle size.

Author

Priya Ranjan Baral (EPFL)

Co-authors

Victor Ukleev Dr Jonathan White (Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut) Oleg Yazyev (EPFL - EPF Lausanne) Prof. Henrik Ronnow (EPFL) A. Magrez (Crystal Growth Facility, Institut de Physique, École polytechnique fédérale de Lausanne(EPFL), 1015 Lausanne, Switzerland)

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