Direct observation of attractive skyrmions and skyrmion clusters in the cubic helimagnet Cu2OSeO3
We report the discovery of attractive magnetic skyrmions and their clusters in noncentrosymmetric ferromagnets. These three-dimensional solitons have been predicted to exist in the cone phase of chiral ferromagnets [J. Phys: Condens. Matter 28, 35LT01 (2016)] and are fundamentally different from the...
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| Veröffentlicht in: | Physical review. B 2018-04, Vol.97 (13) |
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| container_title | Physical review. B |
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| creator | Loudon, J C Leonov, A O Bogdanov, A N Hatnean, M Ciomaga Balakrishnan, G |
| description | We report the discovery of attractive magnetic skyrmions and their clusters in noncentrosymmetric ferromagnets. These three-dimensional solitons have been predicted to exist in the cone phase of chiral ferromagnets [J. Phys: Condens. Matter 28, 35LT01 (2016)] and are fundamentally different from the more common repulsive axisymmetric skyrmions that occur in the magnetically saturated state. We present real-space images of these skyrmion clusters in thin (∼70 nm) single-crystal samples of Cu2OSeO3 taken using transmission electron microscopy and develop a phenomenological theory describing this type of skyrmion. |
| doi_str_mv | 10.1103/PhysRevB.97.134403 |
| format | Article |
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| subjects | Clusters Ferromagnetism Hypothetical particles Particle theory Single crystals Solitary waves Transmission electron microscopy |
| title | Direct observation of attractive skyrmions and skyrmion clusters in the cubic helimagnet Cu2OSeO3 |
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