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Article: Patterning-Induced Ferromagnetism of Fe3GeTe2 van der Waals Materials beyond Room Temperature

TitlePatterning-Induced Ferromagnetism of Fe3GeTe2 van der Waals Materials beyond Room Temperature
Authors
KeywordsMagnetic van der Waals material
room-temperature ferromagnetism
spin-reorientation transition
stripe-domain phase
vortex phase
Issue Date2018
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/nanolett
Citation
Nano Letters, 2018, v. 18 n. 9, p. 5974-5980 How to Cite?
AbstractMagnetic van der Waals (vdW) materials have emerged as promising candidates for spintronics applications, especially after the recent discovery of intrinsic ferromagnetism in monolayer vdW materials. There has been a critical need for tunable ferromagnetic vdW materials beyond room temperature. Here, we report a real-space imaging study of itinerant ferromagnet Fe3GeTe2 and the enhancement of its Curie temperature well above ambient temperature. We find that the magnetic long-range order in Fe3GeTe2 is characterized by an unconventional out-of-plane stripe-domain phase. In Fe3GeTe2 microstructures patterned by a focused ion beam, the out-of-plane stripe domain phase undergoes a surprising transition at 230 K to an in-plane vortex phase that persists beyond room temperature. The discovery of tunable ferromagnetism in Fe3GeTe2 materials opens up vast opportunities for utilizing vdW magnets in room-temperature spintronics devices.
Persistent Identifierhttp://hdl.handle.net/10722/262557
ISSN
2017 Impact Factor: 12.08
2015 SCImago Journal Rankings: 9.006
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorLi, Q-
dc.contributor.authorYang, M-
dc.contributor.authorGong, C-
dc.contributor.authorChopdekar, RV-
dc.contributor.authorN’Diaye, AT-
dc.contributor.authorTurner, J-
dc.contributor.authorChen, G-
dc.contributor.authorScholl, A-
dc.contributor.authorShafer, P-
dc.contributor.authorArenholz, E-
dc.contributor.authorSchmid, AK-
dc.contributor.authorWang, S-
dc.contributor.authorLiu, K-
dc.contributor.authorGao, N-
dc.contributor.authorAdmasu, AS-
dc.contributor.authorCheong, SW-
dc.contributor.authorHwang, C-
dc.contributor.authorLi, J-
dc.contributor.authorWang, F-
dc.contributor.authorZhang, X-
dc.contributor.authorQiu, Z-
dc.date.accessioned2018-10-02T03:57:00Z-
dc.date.available2018-10-02T03:57:00Z-
dc.date.issued2018-
dc.identifier.citationNano Letters, 2018, v. 18 n. 9, p. 5974-5980-
dc.identifier.issn1530-6984-
dc.identifier.urihttp://hdl.handle.net/10722/262557-
dc.description.abstractMagnetic van der Waals (vdW) materials have emerged as promising candidates for spintronics applications, especially after the recent discovery of intrinsic ferromagnetism in monolayer vdW materials. There has been a critical need for tunable ferromagnetic vdW materials beyond room temperature. Here, we report a real-space imaging study of itinerant ferromagnet Fe3GeTe2 and the enhancement of its Curie temperature well above ambient temperature. We find that the magnetic long-range order in Fe3GeTe2 is characterized by an unconventional out-of-plane stripe-domain phase. In Fe3GeTe2 microstructures patterned by a focused ion beam, the out-of-plane stripe domain phase undergoes a surprising transition at 230 K to an in-plane vortex phase that persists beyond room temperature. The discovery of tunable ferromagnetism in Fe3GeTe2 materials opens up vast opportunities for utilizing vdW magnets in room-temperature spintronics devices.-
dc.languageeng-
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/nanolett-
dc.relation.ispartofNano Letters-
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in [JournalTitle], copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [insert ACS Articles on Request author-directed link to Published Work, see http://pubs.acs.org/page/policy/articlesonrequest/index.html].-
dc.subjectMagnetic van der Waals material-
dc.subjectroom-temperature ferromagnetism-
dc.subjectspin-reorientation transition-
dc.subjectstripe-domain phase-
dc.subjectvortex phase-
dc.titlePatterning-Induced Ferromagnetism of Fe3GeTe2 van der Waals Materials beyond Room Temperature-
dc.typeArticle-
dc.identifier.emailZhang, X: president@hku.hk-
dc.identifier.authorityZhang, X=rp02411-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1021/acs.nanolett.8b02806-
dc.identifier.volume18-
dc.identifier.issue9-
dc.identifier.spage5974-
dc.identifier.epage5980-
dc.identifier.isiWOS:000444793500087-
dc.publisher.placeUnited States-

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