TY - JOUR
T1 - Asymmetric transition of electrical resistance in an all-solid-state redox device with Fe3O4 and Li-ion electrolyte thin films for physical reservoir computing
AU - Namiki, Wataru
AU - Tsuchiya, Takashi
AU - Nishioka, Daiki
AU - Higuchi, Tohru
AU - Terabe, Kazuya
N1 - Publisher Copyright:
© 2024 The Japan Society of Applied Physics.
PY - 2024/3/1
Y1 - 2024/3/1
N2 - In recent years, ion-gating devices have been used in artificial neuromorphic computing and achieved high performance for time-series data processing. However, the origin of this performance still needs to be clarified. In this study, we fabricated an all-solid-state redox device with functional material Fe3O4 and Li-ion conducting solid electrolytes, and the transient response of the electrical resistance of the Fe3O4 thin film to time-series data input was investigated. The transition between high and low electrical resistance states was asymmetric, and residual Li-ion in the thin film led to a hysteresis effect. These unique features, which are induced by ion-electron dynamics coupling, contributes to the high performance of physical reservoir computing utilizing an ion-gating device.
AB - In recent years, ion-gating devices have been used in artificial neuromorphic computing and achieved high performance for time-series data processing. However, the origin of this performance still needs to be clarified. In this study, we fabricated an all-solid-state redox device with functional material Fe3O4 and Li-ion conducting solid electrolytes, and the transient response of the electrical resistance of the Fe3O4 thin film to time-series data input was investigated. The transition between high and low electrical resistance states was asymmetric, and residual Li-ion in the thin film led to a hysteresis effect. These unique features, which are induced by ion-electron dynamics coupling, contributes to the high performance of physical reservoir computing utilizing an ion-gating device.
KW - FeO
KW - ionics
KW - reservoir computing
KW - solid electrolyte
UR - http://www.scopus.com/inward/record.url?scp=85184996160&partnerID=8YFLogxK
U2 - 10.35848/1347-4065/ad1fb0
DO - 10.35848/1347-4065/ad1fb0
M3 - Article
AN - SCOPUS:85184996160
SN - 0021-4922
VL - 63
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
IS - 3
M1 - 03SP13
ER -