2023 Fiscal Year Annual Research Report
Skyrmionic LEGO- entangled skyrmion networks in chiral magnets and liquid crystals
| Project/Area Number |
21K03406
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| Research Institution | Hiroshima University |
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Principal Investigator |
LEONOV ANDRIY 広島大学, 先進理工系科学研究科(理), 准教授 (30804851)
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | skyrmion / hopfion / bimeron / DMI / Cu2OSeO3 |
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| Outline of Annual Research Achievements |
Novel classes of multidimensional chiral solitons were theoretically studied in chiral magnets and liquid crystals. Among the found solitons are: 1) torons and bobbers in thin layers of liquid crystals; 2) target-skyrmions and springs in bulk chiral magnets; 3) non-axisymmetric vertical and horizontal skyrmions within the conical states of chiral magnets; 4) two-dimensional merons of easy-axis and easy-plane varieties; 5) three-dimensional knotted hopfions in bulk helimagnets. A systematic study of the stability and ordering of low-temperature skyrmion and spiral states was undertaken in a bulk helimagnet Cu2OSeO3 through the use of versatile indirect techniques such as neutron scattering, magnetization and ac magnetic susceptibility measurements.
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