dc.contributor.author | Bertacco, R. | |
dc.contributor.author | Baldrati, Lorenzo | |
dc.contributor.author | Tan, Aik Jun | |
dc.contributor.author | Mann, Maxwell | |
dc.contributor.author | Beach, Geoffrey Stephen | |
dc.date.accessioned | 2018-01-18T14:22:18Z | |
dc.date.available | 2018-01-18T14:22:18Z | |
dc.date.issued | 2017-01 | |
dc.date.submitted | 2016-08 | |
dc.identifier.issn | 0003-6951 | |
dc.identifier.issn | 1077-3118 | |
dc.identifier.uri | http://hdl.handle.net/1721.1/113220 | |
dc.description.abstract | The magneto-ionic effect is a promising method to control the magnetic properties electrically. Charged mobile oxygen ions can easily be driven by an electric field to modify the magnetic anisotropy of a ferromagnetic layer in contact with an ionic conductor in a solid-state device. In this paper, we report on the room temperature magneto-ionic modulation of the magnetic anisotropy of ultrathin CoFeB films in contact with a GdO[subscript x] layer, as probed by polar micro-Magneto Optical Kerr Effect during the application of a voltage across patterned capacitors. Both Pt/CoFeB/GdO[subscript x] films with perpendicular magnetic anisotropy and Ta/CoFeB/GdO[subscript x] films with uniaxial in-plane magnetic anisotropy in the as-grown state exhibit a sizable dependence of the magnetic anisotropy on the voltage (amplitude, polarity, and time) applied across the oxide. In Pt/CoFeB/GdO[subscript x] multilayers, it is possible to reorient the magnetic anisotropy from perpendicular-to-plane to in-plane, with a variation of the magnetic anisotropy energy greater than 0.2 mJ m[subscript -2]. As for Ta/CoFeB/GdO[subscript x] multilayers, magneto-ionic effects still lead to a sizable variation of the in-plane magnetic anisotropy, but the anisotropy axis remains in-plane. | en_US |
dc.publisher | American Institute of Physics (AIP) | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1063/1.4973475 | en_US |
dc.rights | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. | en_US |
dc.source | MIT Web Domain | en_US |
dc.title | Magneto-ionic effect in CoFeB thin films with in-plane and perpendicular-to-plane magnetic anisotropy | en_US |
dc.type | Article | en_US |
dc.identifier.citation | Baldrati, L. et al. “Magneto-Ionic Effect in CoFeB Thin Films with in-Plane and Perpendicular-to-Plane Magnetic Anisotropy.” Applied Physics Letters 110, 1 (January 2017): 012404 © 2017 Author(s) | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Department of Materials Science and Engineering | en_US |
dc.contributor.mitauthor | Baldrati, Lorenzo | |
dc.contributor.mitauthor | Tan, Aik Jun | |
dc.contributor.mitauthor | Mann, Maxwell | |
dc.contributor.mitauthor | Beach, Geoffrey Stephen | |
dc.relation.journal | Applied Physics Letters | en_US |
dc.eprint.version | Final published version | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dc.date.updated | 2018-01-16T18:36:58Z | |
dspace.orderedauthors | Baldrati, L.; Tan, A. J.; Mann, M.; Bertacco, R.; Beach, G. S. D. | en_US |
dspace.embargo.terms | N | en_US |
dc.identifier.orcid | https://orcid.org/0000-0002-6858-8424 | |
dc.identifier.orcid | https://orcid.org/0000-0002-8719-2652 | |
mit.license | PUBLISHER_POLICY | en_US |