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Deterministic creation and deletion of a single magnetic skyrmion observed by direct time-resolved X-ray microscopy

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dc.contributor.authorWoo, Seonghoon-
dc.contributor.authorSong, Kyung Mee-
dc.contributor.authorZhang, Xichao-
dc.contributor.authorEzawa, Motohiko-
dc.contributor.authorZhou, Yan-
dc.contributor.authorLiu, Xiaoxi-
dc.contributor.authorWeigand, Markus-
dc.contributor.authorFinizio, Simone-
dc.contributor.authorRaabe, Jorg-
dc.contributor.authorPark, Min-Chul-
dc.contributor.authorLee, Ki-Young-
dc.contributor.authorChoi, Jun Woo-
dc.contributor.authorMin, Byoung-Chul-
dc.contributor.authorKoo, Hyun Cheol-
dc.contributor.authorChang, Joonyeon-
dc.date.available2021-02-22T09:45:31Z-
dc.date.issued2018-05-
dc.identifier.issn2520-1131-
dc.identifier.urihttps://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/4539-
dc.description.abstractSpintronic devices based on magnetic skyrmions are a promising candidate for next-generation memory applications due to their nanometre size, topologically protected stability and efficient current-driven dynamics. Since the recent discovery of room-temperature magnetic skyrmions, there have been reports of current-driven skyrmion displacement on magnetic tracks and demonstrations of current pulse-driven skyrmion generation. However, the controlled annihilation of a single skyrmion at room temperature has remained elusive. Here we demonstrate the deterministic writing and deleting of single isolated skyrmions at room temperature in ferrimagnetic GdFeCo films with a device-compatible stripline geometry. The process is driven by the application of current pulses, which induce spin-orbit torques, and is directly observed using a time-resolved nanoscale X-ray imaging technique. We provide a current pulse profile for the efficient and deterministic writing and deleting process. Using micromagnetic simulations, we also reveal the microscopic mechanism of the topological fluctuations that occur during this process.-
dc.format.extent9-
dc.language영어-
dc.language.isoENG-
dc.publisherNATURE PUBLISHING GROUP-
dc.titleDeterministic creation and deletion of a single magnetic skyrmion observed by direct time-resolved X-ray microscopy-
dc.typeArticle-
dc.publisher.location영국-
dc.identifier.doi10.1038/s41928-018-0070-8-
dc.identifier.scopusid2-s2.0-85055094994-
dc.identifier.wosid000444075900011-
dc.identifier.bibliographicCitationNATURE ELECTRONICS, v.1, no.5, pp 288 - 296-
dc.citation.titleNATURE ELECTRONICS-
dc.citation.volume1-
dc.citation.number5-
dc.citation.startPage288-
dc.citation.endPage296-
dc.type.docTypeArticle-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClassscopus-
dc.description.journalRegisteredClassesci-
dc.relation.journalResearchAreaEngineering-
dc.relation.journalWebOfScienceCategoryEngineering, Electrical & Electronic-
dc.subject.keywordPlusCURRENT-DRIVEN DYNAMICS-
dc.subject.keywordPlusLATTICE-
dc.subject.keywordPlusMOTION-
dc.identifier.urlhttps://www.nature.com/articles/s41928-018-0070-8-
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