In this work, we have investigated the coexistence of volatile and nonvolatile memristive effects in epitaxial phase-separated La0.5Ca0.5MnO3 thin films. At low temperatures (50 K), we observed volatile resistive changes arising from self-heating effects in the vicinity of a metal-to-insulator transition. At higher temperatures (140 and 200 K), we measured a combination of volatile and nonvolatile effects arising from the synergy between self-heating effects and ferromagnetic-metallic phase growth induced by an external electrical field. The results reported here add phase separated manganites to the list of materials that can electrically mimic, on the same device, the behavior of both neurons and synapses, a feature that might be useful for the development of neuromorphic computing hardware.
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6 February 2023
Research Article|
February 09 2023
Coexistence of volatile and nonvolatile memristive effects in phase-separated La0.5Ca0.5MnO3-based devices
G. A. Ramírez
;
G. A. Ramírez
(Data curation, Investigation, Writing – original draft)
1
Departamento de Micro y Nanotecnologías (CNEA)
, Gral. Paz 1499 (1650), San Martín, Buenos Aires, Argentina
2
Instituto de Nanociencia y Nanotecnología (INN), CONICET-CNEA
, Buenos Aires and Bariloche, Argentina
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W. Román Acevedo;
W. Román Acevedo
(Data curation, Investigation)
1
Departamento de Micro y Nanotecnologías (CNEA)
, Gral. Paz 1499 (1650), San Martín, Buenos Aires, Argentina
2
Instituto de Nanociencia y Nanotecnología (INN), CONICET-CNEA
, Buenos Aires and Bariloche, Argentina
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M. Rengifo
;
M. Rengifo
(Data curation, Investigation)
3
Departamento de Física de Materia Condensada, Universidad de Zaragoza
, Pedro Cerbuna 12, 50009 Zaragoza, Spain
4
Laboratorio de Microscopías Avanzadas (LMA), Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza
, C/Mariano Esquillor s/n., 50018 Zaragoza, Spain
5
Instituto de Ciencias de Materiales de Aragón (ICMA), Universidad de Zaragoza
, 50009 Zaragoza, Spain
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J. M. Nuñez
;
J. M. Nuñez
(Investigation)
2
Instituto de Nanociencia y Nanotecnología (INN), CONICET-CNEA
, Buenos Aires and Bariloche, Argentina
3
Departamento de Física de Materia Condensada, Universidad de Zaragoza
, Pedro Cerbuna 12, 50009 Zaragoza, Spain
4
Laboratorio de Microscopías Avanzadas (LMA), Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza
, C/Mariano Esquillor s/n., 50018 Zaragoza, Spain
5
Instituto de Ciencias de Materiales de Aragón (ICMA), Universidad de Zaragoza
, 50009 Zaragoza, Spain
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M. H. Aguirre
;
M. H. Aguirre
(Formal analysis, Funding acquisition, Investigation)
3
Departamento de Física de Materia Condensada, Universidad de Zaragoza
, Pedro Cerbuna 12, 50009 Zaragoza, Spain
4
Laboratorio de Microscopías Avanzadas (LMA), Instituto de Nanociencia de Aragón (INA), Universidad de Zaragoza
, C/Mariano Esquillor s/n., 50018 Zaragoza, Spain
5
Instituto de Ciencias de Materiales de Aragón (ICMA), Universidad de Zaragoza
, 50009 Zaragoza, Spain
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J. Briático
;
J. Briático
(Funding acquisition, Investigation)
6
Unité Mixte de Physique CNRS/Thales and Université Paris-Saclay
, Palaiseau 91767, France
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D. Rubi
D. Rubi
a)
(Conceptualization, Formal analysis, Funding acquisition, Methodology, Supervision, Writing – review & editing)
1
Departamento de Micro y Nanotecnologías (CNEA)
, Gral. Paz 1499 (1650), San Martín, Buenos Aires, Argentina
2
Instituto de Nanociencia y Nanotecnología (INN), CONICET-CNEA
, Buenos Aires and Bariloche, Argentina
a)Author to whom correspondence should be addressed: [email protected]
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a)Author to whom correspondence should be addressed: [email protected]
Appl. Phys. Lett. 122, 063503 (2023)
Article history
Received:
October 26 2022
Accepted:
January 27 2023
Citation
G. A. Ramírez, W. Román Acevedo, M. Rengifo, J. M. Nuñez, M. H. Aguirre, J. Briático, D. Rubi; Coexistence of volatile and nonvolatile memristive effects in phase-separated La0.5Ca0.5MnO3-based devices. Appl. Phys. Lett. 6 February 2023; 122 (6): 063503. https://doi.org/10.1063/5.0132047
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