Full metadata record
DC Field | Value | Language |
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dc.contributor.author | de h-Ora, Muireann | - |
dc.contributor.author | Nicolenco, Aliona | - |
dc.contributor.author | Monalisha, P. | - |
dc.contributor.author | Maity, Tuhin | - |
dc.contributor.author | Zhu, Bonan | - |
dc.contributor.author | Lee, Shinbuhm | - |
dc.contributor.author | Sun, Zhuotong | - |
dc.contributor.author | Sort, Jordi | - |
dc.contributor.author | MacManus-Driscoll, Judith | - |
dc.date.accessioned | 2023-07-20T10:40:17Z | - |
dc.date.available | 2023-07-20T10:40:17Z | - |
dc.date.created | 2023-05-25 | - |
dc.date.issued | 2023-05 | - |
dc.identifier.issn | 2166-532X | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/46215 | - |
dc.description.abstract | Tuning the properties of magnetic materials by voltage-driven ion migration (magneto-ionics) gives potential for energy-efficient, non-volatile magnetic memory and neuromorphic computing. Here, we report large changes in the magnetic moment at saturation (mS) and coercivity (HC), of 34% and 78%, respectively, in an array of CoFe2O4 (CFO) epitaxial nanopillar electrodes (∼50 nm diameter, ∼70 nm pitch, and 90 nm in height) with an applied voltage of −10 V in a liquid electrolyte cell. Furthermore, a magneto-ionic response faster than 3 s and endurance >2000 cycles are demonstrated. The response time is faster than for other magneto-ionic films of similar thickness, and cyclability is around two orders of magnitude higher than for other oxygen magneto-ionic systems. Using a range of characterization techniques, magnetic switching is shown to arise from the modulation of oxygen content in the CFO. Also, the highly cyclable, self-assembled nanopillar structures were demonstrated to emulate various synaptic behaviors, exhibiting non-volatile, multilevel magnetic states for analog computing and high-density storage. Overall, CFO nanopillar arrays offer the potential to be used as interconnected synapses for advanced neuromorphic computing applications. © 2023 Author(s). | - |
dc.language | English | - |
dc.publisher | American Institute of Physics Inc. | - |
dc.title | Highly cyclable voltage control of magnetism in cobalt ferrite nanopillars for memory and neuromorphic applications | - |
dc.type | Article | - |
dc.identifier.doi | 10.1063/5.0147665 | - |
dc.identifier.scopusid | 2-s2.0-85157970109 | - |
dc.identifier.bibliographicCitation | APL Materials, v.11, no.5 | - |
dc.description.isOpenAccess | TRUE | - |
dc.subject.keywordPlus | TRANSITION | - |
dc.subject.keywordPlus | MAGNETIZATION | - |
dc.citation.number | 5 | - |
dc.citation.title | APL Materials | - |
dc.citation.volume | 11 | - |
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