Abstract：
:The lateral motion of a magnetic skyrmion, arising because of the skyrmion Hall effect, imposes a number of restrictions on the use of this spin state in the racetrack memory. A skyrmionium is a more promising spin texture for memory applications, since it has zero total topological charge and propagates strictly along a nanotrack. Here, the stability of the skyrmionium, as well as the dependence of its size on the magnetic parameters, such as the Dzyaloshinskii-Moriya interaction and perpendicular magnetic anisotropy, are studied by means of micromagnetic simulations. We propose an advanced method for the skyrmionium nucleation due to a local enhancement of the spin Hall effect. The stability of the skyrmionium being in motion under the action of the spin polarized current is analyzed.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Kolesnikov AG,Stebliy ME,Samardak AS,Ognev AVdoi
10.1038/s41598-018-34934-2subject
Has Abstractpub_date
2018-11-16 00:00:00pages
16966issue
1issn
2045-2322pii
10.1038/s41598-018-34934-2journal_volume
8pub_type
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