Colossal magnetic phase transition asymmetry in mesoscale FeRh stripes

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dc.contributor.authorUhlíř, Vojtěchcs
dc.contributor.authorArregi Uribeetxebarria, Jon Andercs
dc.contributor.authorFullerton, E.E.cs
dc.coverage.issue1cs
dc.coverage.volume7cs
dc.date.accessioned2021-12-10T11:52:17Z
dc.date.available2021-12-10T11:52:17Z
dc.date.issued2016-10-11cs
dc.description.abstractCoupled order parameters in phase-transition materials can be controlled using various driving forces such as temperature, magnetic and electric field, strain, spin-polarized currents and optical pulses. Tuning the material properties to achieve efficient transitions would enable fast and low-power electronic devices. Here we show that the first-order metamagnetic phase transition in FeRh films becomes strongly asymmetric in mesoscale structures. In patterned FeRh stripes we observed pronounced supercooling and an avalanche-like abrupt transition from the ferromagnetic to the antiferromagnetic phase, while the reverse transition remains nearly continuous over a broad temperature range. Although modest asymmetry signatures have been found in FeRh films, the effect is dramatically enhanced at the mesoscale. The activation volume of the antiferromagnetic phase is more than two orders of magnitude larger than typical magnetic heterogeneities observed in films. The collective behaviour upon cooling results from the role of long-range ferromagnetic exchange correlations that become important at the mesoscale and should be a general property of first-order metamagnetic phase transitions.en
dc.formattextcs
dc.format.extent1-7cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationNATURE COMMUNICATIONS. 2016, vol. 7, issue 1, p. 1-7.en
dc.identifier.doi10.1038/ncomms13113cs
dc.identifier.issn2041-1723cs
dc.identifier.other132563cs
dc.identifier.urihttp://hdl.handle.net/11012/203159
dc.language.isoencs
dc.publisherSpringer Naturecs
dc.relation.ispartofNATURE COMMUNICATIONScs
dc.relation.urihttps://www.nature.com/articles/ncomms13113#Abs1cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2041-1723/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectroom-temperatureen
dc.subjectalloyen
dc.subjecttransformationsen
dc.subjectmultiferroicsen
dc.subjectmanganitesen
dc.subjectsystemsen
dc.subjectorderen
dc.subjectfilmsen
dc.titleColossal magnetic phase transition asymmetry in mesoscale FeRh stripesen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-132563en
sync.item.dbtypeVAVen
sync.item.insts2022.02.08 12:54:53en
sync.item.modts2022.02.08 12:15:05en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Příprava a charakterizace nanostrukturcs
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Příprava a charakterizace nanostruktur