Highly cyclable voltage control of magnetism in cobalt ferrite nanopillars for memory and neuromorphic applications

Muireann de h-Óra; Aliona Nicolenco; P. Monalisha; Tuhin Maity; Bonan Zhu; Shinbuhm Lee; Zhuotong Sun; Jordi Sort; Judith MacManus-Driscoll

doi:10.1063/5.0147665

Highly cyclable voltage control of magnetism in cobalt ferrite nanopillars for memory and neuromorphic applications

Muireann de h-Óra^*, Aliona Nicolenco, P. Monalisha, Tuhin Maity, Bonan Zhu, Shinbuhm Lee, Zhuotong Sun, Jordi Sort^*, Judith MacManus-Driscoll^*

^*Autor corresponent d’aquest treball

Producció científica: Contribució a revista › Article › Recerca › Avaluat per experts

14 Cites (Scopus)

Resum

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. Aquí, reportem grans canvis en el moment magnètic a la saturació (mS) i coercivitat (HC), de 34% i 78%, respectivament, en un conjunt d'elèctrodes nanopilar epitaxials CoFe2O4 (CFO) (~50 nm diàmetre, ~70 nm pas, i 9льm alçada) amb una tensió aplicada de -10 V en una cèl·lula electrolítica líquida. A més a més, es va demostrar que la resposta magneto-ionica és més ràpida que 3 s i resistència >2000 cicles. El temps de resposta és més ràpid que per altres films magneto-ionics d'espessor similar, i la capacitat de ciclatge és al voltant de dos ordres de magnitud superior a la d'altres sistemes oxigenats magneto-ionics. Usant una gamma de tècniques de caracterització, es va demostrar que l'activació magnètica sorgeix de la modulació del contingut d'oxigen en el CFO. A més a més, les estructures nanopilar altament ciclades i autoensamblades van emular diversos comportaments sinàptics, mostrant estats magnètics no volàtils de múltiples nivells per a computació analògica i emmagatzematge d'alta densitat. En general, els conjunts de nanopilar CFO ofereixen el potencial per ser usats com sinapsis interconnectades en aplicacions avançades de computació neuromòrfica.

Idioma original	Anglès
Número d’article	051105
Revista	APL materials
Volum	11
Número	5
DOIs	https://doi.org/10.1063/5.0147665
Estat de la publicació	Publicada - 1 de maig 2023

Accés al document

10.1063/5.0147665

https://ddd.uab.cat/record/288377

Altres arxius i enllaços

Enllaç a la publicació de Scopus

MAGNUS: Strain-graded MAGnetoelectric composites based on NanoporoUS materials for information and biomedical technologies
Sort Viñas, J. (Investigador/a principal) & Nicolenco ., A. (Beneficiari/a)
MSCA Postdoctoral Fellowship
1/01/21 → 31/08/22
Projecte: Projecte Internacional de Recerca
BeMAGIC: Magnetoelectrics Beyond 2020: A Training Programme on Energy-Efficient Magnetoelectric Nanomaterials for Advanced Information and Healthcare Technologies (BeMAGIC)
Sort Viñas, J. (Investigador/a principal), Beguivin, A. (Altres), Gonçalves, S. (Investigador/a contractat/da), Gonçalves Martins, C. S. (Investigador/a), Menendez Dalmau, E. (Investigador/a), Nogues Sanmiquel, M. D. C. (Investigador/a), Pego, A. P. (Investigador/a), Pellicer Vila, E. M. (Investigador/a), Rizzi, P. (Investigador/a), Tan , Z. (Beneficiari/a) & Malapeira Argilaga, J. (Project Manager)
Comissió Europea (CE), MSCA Doctoral Network
1/09/19 → 29/02/24
Projecte: Projecte Internacional de Recerca

Com citar-ho

@article{89962e88f9994f53a9b88b2b4dce4609,

title = "Highly cyclable voltage control of magnetism in cobalt ferrite nanopillars for memory and neuromorphic applications",

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.",

author = "\{de h-{\'O}ra\}, Muireann and Aliona Nicolenco and P. Monalisha and Tuhin Maity and Bonan Zhu and Shinbuhm Lee and Zhuotong Sun and Jordi Sort and Judith MacManus-Driscoll",

note = "Publisher Copyright: {\textcopyright} 2023 Author(s).",

year = "2023",

month = may,

day = "1",

doi = "10.1063/5.0147665",

language = "English",

volume = "11",

journal = "APL materials",

issn = "2166-532X",

publisher = "American Institute of Physics",

number = "5",

}

TY - JOUR

T1 - Highly cyclable voltage control of magnetism in cobalt ferrite nanopillars for memory and neuromorphic applications

AU - de h-Óra, Muireann

AU - Nicolenco, Aliona

AU - Monalisha, P.

AU - Maity, Tuhin

AU - Zhu, Bonan

AU - Lee, Shinbuhm

AU - Sun, Zhuotong

AU - Sort, Jordi

AU - MacManus-Driscoll, Judith

PY - 2023/5/1

Y1 - 2023/5/1

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/85157970109

U2 - 10.1063/5.0147665

DO - 10.1063/5.0147665

M3 - Article

AN - SCOPUS:85157970109

SN - 2166-532X

VL - 11

JO - APL materials

JF - APL materials

IS - 5

M1 - 051105

ER -

Highly cyclable voltage control of magnetism in cobalt ferrite nanopillars for memory and neuromorphic applications

Resum

Accés al document

Altres arxius i enllaços

Fingerprint

Projectes

MAGNUS: Strain-graded MAGnetoelectric composites based on NanoporoUS materials for information and biomedical technologies

BeMAGIC: Magnetoelectrics Beyond 2020: A Training Programme on Energy-Efficient Magnetoelectric Nanomaterials for Advanced Information and Healthcare Technologies (BeMAGIC)

Com citar-ho