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Controlled skyrmion nucleation in extended magnetic layers using a nanocontact geometry
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics. Department of Physics, University of Gothenburg, .ORCID iD: 0000-0002-3513-6608
2017 (English)In: Physical Review B, ISSN 2469-9950, E-ISSN 2469-9969, Vol. 96, no 5, article id 054430Article in journal (Refereed) Published
Abstract [en]

We propose and numerically simulate a spintronic device layout consisting of a nanocontact on top of an extended Co/Pt bilayer. The interfacial Dzyaloshinskii-Moriya interaction in such bilayer systems can lead to the possible existence of metastable skyrmions. A small dc current injected through the nanocontact enables the manipulation of the size as well as the annihilation of an initially present skyrmion, while ps-long current pulses allow for the controlled nucleation of single skyrmions underneath the nanocontact. The results are obtained from micromagnetic simulations and can be potentially used for future magnetic storage implementations.

Place, publisher, year, edition, pages
AMER PHYSICAL SOC , 2017. Vol. 96, no 5, article id 054430
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Physical Sciences
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URN: urn:nbn:se:kth:diva-214327DOI: 10.1103/PhysRevB.96.054430ISI: 000408112200002Scopus ID: 2-s2.0-85029228999OAI: oai:DiVA.org:kth-214327DiVA, id: diva2:1141305
Note

QC 20170914

Available from: 2017-09-14 Created: 2017-09-14 Last updated: 2018-09-19Bibliographically approved

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Åkerman, Johan

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