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Issue 5, 2019
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The limit to realize an isolated magnetic single skyrmionic state

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Abstract

The physical properties of a nanoparticle change drastically when the particle size approaches the length scale of the relevant order parameter. Herein, we demonstrate the ferrimagnetic ground state of Cu2OSeO3 nanoparticles, which is otherwise a chiral magnet (including large-size skyrmionic spin texture) in its bulk form. Theoretical studies suggest that such a pure ferrimagnetic ground state in this material (with low Dzyaloshinskii–Moriya interaction to Heisenberg interaction ratio) is possible only in the presence of magneto-crystalline anisotropy energy when the confinement size approaches the skyrmion size (∼50 nm in bulk). These observations suggest the limit to realize an isolated single skyrmion.

Graphical abstract: The limit to realize an isolated magnetic single skyrmionic state

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Article information


Submitted
09 Aug 2018
Accepted
22 Dec 2018
First published
14 Jan 2019

J. Mater. Chem. C, 2019,7, 1337-1344
Article type
Paper

The limit to realize an isolated magnetic single skyrmionic state

M. M. Devi, W. Koshibae, G. Sharma, R. Tomar, V. M. Gaikwad, R. M. Varma, M. N. Nair, M. Jha, D. D. Sarma, R. Chatterjee, A. K. Ganguli and S. Chakraverty, J. Mater. Chem. C, 2019, 7, 1337
DOI: 10.1039/C8TC03968B

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