dc.contributor.author | Johansen, Øyvind | |
dc.contributor.author | Risinggård, Vetle Kjær | |
dc.contributor.author | Sudbø, Asle | |
dc.contributor.author | Linder, Jacob | |
dc.contributor.author | Brataas, Arne | |
dc.date.accessioned | 2019-06-04T06:00:24Z | |
dc.date.available | 2019-06-04T06:00:24Z | |
dc.date.created | 2019-06-03T09:15:10Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Physical Review Letters. 2019, 122 (21) | nb_NO |
dc.identifier.issn | 0031-9007 | |
dc.identifier.uri | http://hdl.handle.net/11250/2599798 | |
dc.description.abstract | The recent discovery of magnetism in two-dimensional van der Waals systems opens the door to discovering exciting physics. We investigate how a current can control the ferromagnetic properties of such materials. Using symmetry arguments, we identify a recently realized system in which the current-induced spin torque is particularly simple and powerful. In Fe3GeTe2, a single parameter determines the strength of the spin-orbit torque for a uniform magnetization. The spin-orbit torque acts as an effective out-of-equilibrium free energy. The contribution of the spin-orbit torque to the effective free energy introduces new in-plane magnetic anisotropies to the system. Therefore, we can tune the system from an easy-axis ferromagnet via an easy-plane ferromagnet to another easy-axis ferromagnet with increasing current density. This finding enables unprecedented control and provides the possibility to study the Berezinskii-Kosterlitz-Thouless phase transition in the 2D XY model and its associated critical exponents | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | American Physical Society | nb_NO |
dc.title | Current Control of Magnetism in Two-Dimensional Fe3GeTe2 | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | acceptedVersion | nb_NO |
dc.source.pagenumber | 6 | nb_NO |
dc.source.volume | 122 | nb_NO |
dc.source.journal | Physical Review Letters | nb_NO |
dc.source.issue | 21 | nb_NO |
dc.identifier.doi | 10.1103/PhysRevLett.122.217203 | |
dc.identifier.cristin | 1702178 | |
dc.relation.project | Norges forskningsråd: 262633 | nb_NO |
dc.relation.project | Norges forskningsråd: 250985 | nb_NO |
dc.relation.project | Norges forskningsråd: 239926 | nb_NO |
dc.relation.project | Norges forskningsråd: 240806 | nb_NO |
dc.description.localcode | © 2019 American Physical Society | nb_NO |
cristin.unitcode | 194,66,20,0 | |
cristin.unitname | Institutt for fysikk | |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 2 | |