Voltage-Controlled ON-OFF-Switching of Magnetoresistance in FeOx/Fe/Au Aerogel Networks
dc.bibliographicCitation.date | 2024 | |
dc.bibliographicCitation.firstPage | 55 | |
dc.bibliographicCitation.issue | 1 | |
dc.bibliographicCitation.journalTitle | ACS Materials Au | eng |
dc.bibliographicCitation.lastPage | 64 | |
dc.bibliographicCitation.volume | 4 | |
dc.contributor.author | Nichterwitz, Martin | |
dc.contributor.author | Hiekel, Karl | |
dc.contributor.author | Wolf, Daniel | |
dc.contributor.author | Eychmüller, Alexander | |
dc.contributor.author | Leistner, Karin | |
dc.date.accessioned | 2024-05-07T11:16:48Z | |
dc.date.available | 2024-05-07T11:16:48Z | |
dc.date.issued | 2023 | |
dc.description.abstract | Voltage control of magnetoresistance (MR) in nanoscale three-dimensional (3D) geometries is interesting from a fundamental point of view and a promising route toward novel sensors and energy-efficient computing schemes. Magneto-ionic mechanisms are favorable for low-voltage control of magnetism and room-temperature operation, but magneto-ionic control of MR has been studied only for planar geometries so far. We synthesize a 3D nanomaterial with magneto-ionic functionality by electrodepositing an iron hydroxide/iron coating on a porous nanoscale gold network (aerogel). To enable maximum magneto-ionic ON-OFF-switching, the thickness of the coating is adjusted to a few nanometers by a self-terminating electrodeposition process. In situ magnetotransport measurements during electrolytic gating of these nanostructures reveal large reversible changes in MR, including ON-OFF-switching of MR, with a small applied voltage difference (1.72 V). This effect is related to the electrochemical switching between a ferromagnetic iron shell/gold core nanostructure (negative MR at the reduction voltage) and an iron oxide shell/gold core nanostructure (negligible MR at the oxidation voltage). | eng |
dc.description.version | publishedVersion | eng |
dc.identifier.uri | https://oa.tib.eu/renate/handle/123456789/14571 | |
dc.identifier.uri | https://doi.org/10.34657/13602 | |
dc.language.iso | eng | |
dc.publisher | Washington, DC : ACS Publications | |
dc.relation.doi | https://doi.org/10.1021/acsmaterialsau.3c00045 | |
dc.relation.essn | 2694-2461 | |
dc.rights.license | CC BY-NC-ND 4.0 Unported | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0 | |
dc.subject.ddc | 540 | |
dc.subject.other | aerogel | eng |
dc.subject.other | electrodeposition | eng |
dc.subject.other | magneto-ionics | eng |
dc.subject.other | magnetoresistance | eng |
dc.subject.other | nanomagnetism | eng |
dc.subject.other | nanomaterials | eng |
dc.subject.other | voltage control of magnetism | eng |
dc.title | Voltage-Controlled ON-OFF-Switching of Magnetoresistance in FeOx/Fe/Au Aerogel Networks | eng |
dc.type | Article | eng |
dc.type | Text | eng |
tib.accessRights | openAccess | |
wgl.contributor | IFWD | |
wgl.subject | Chemie | ger |
wgl.type | Zeitschriftenartikel | ger |
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