التفاصيل البيبلوغرافية
| العنوان: |
Highly cyclable voltage control of magnetism in cobalt ferrite nanopillars for memory and neuromorphic applications |
| المؤلفون: |
de h-Óra, Muireann, Nicolenco, Aliona, Monalisha, P., Maity, Tuhin, Zhu, Bonan, Lee, Shinbuhm, Sun, Zhuotong, Sort Viñas, Jordi, Driscoll, Judith |
| سنة النشر: |
2023 |
| المجموعة: |
Universitat Autònoma de Barcelona: Dipòsit Digital de Documents de la UAB |
| الوصف: |
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. |
| نوع الوثيقة: |
article in journal/newspaper |
| وصف الملف: |
application/pdf |
| اللغة: |
English |
| تدمد: |
2166532X |
| Relation: |
European Commission 861145; European Commission 882929; European Commission 101054687; Agencia Estatal de Investigación PID2020-116844RB-C21; Agencia Estatal de Investigación PDC2021-121276-C31; Agencia Estatal de Investigación PID2020 116844RB-C22; Agencia Estatal de Investigación PDC2021-121276-C32; Agència de Gestió d'Ajuts Universitaris i de Recerca 2021/SGR-00651; European Commission 892661; APL materials; Vol. 11, Issue 5 (May 2023), art. 051105; https://ddd.uab.cat/record/288377; urn:10.1063/5.0147665; urn:oai:ddd.uab.cat:288377; urn:oai:egreta.uab.cat:publications/89962e88-f999-4f53-a9b8-8b2b4dce4609; urn:articleid:2166532Xv11n5p51105 |
| الاتاحة: |
https://ddd.uab.cat/record/288377 |
| Rights: |
open access ; Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. ; https://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: |
edsbas.E61307EA |
| قاعدة البيانات: |
BASE |
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