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Synaptic Plasticity and Metaplasticity of Biological Synapse Realized in a KNbO3 Memristor for Application to Artificial Synapse.
ACS Appl Mater Interfaces 2018; 10(30):25673-25682AA

Abstract

Amorphous KNbO3 (KN) films were grown on a TiN/SiO2/Si substrate to synthesize a KN memristor as a potential artificial synapse. The Pt/KN/TiN memristor exhibited typical and reliable bipolar switching behavior with multiple resistance levels. It also showed the transmission properties of a biological synapse, with a good conductance modulation linearity. Moreover, the KN memristor can emulate various biological synaptic plasticity characteristics including short-term plasticity, long-term plasticity, spike-rate dependent plasticity, paired-pulse facilitation, and post-tetanic potentiation by controlling the number and rate of the potentiation spike. Spike-timing-dependent plasticity (STDP), which is an essential property of biological synapses, is also realized in the KN memristor. The synaptic plasticity of the KN memristor can be explained by oxygen vacancy movement and oxygen vacancy filaments. The metaplasticity of biological synapses was also implemented in the KN memristor, including the metaplasticity of long-term potentiation and depression, and of STDP. Therefore, the KN memristor could be used as an artificial synapse in neuromorphic computing systems.

Authors+Show Affiliations

No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableApplied Quantum Composites Research Center , KIST Jeonbuk Institute of Advanced Composite Materials , 92 Chudong-ro , Bongdong-eup, Wanju-gun , Jeollabuk-do 55324 , Republic of Korea.No affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29985576

Citation

Lee, Tae-Ho, et al. "Synaptic Plasticity and Metaplasticity of Biological Synapse Realized in a KNbO3 Memristor for Application to Artificial Synapse." ACS Applied Materials & Interfaces, vol. 10, no. 30, 2018, pp. 25673-25682.
Lee TH, Hwang HG, Woo JU, et al. Synaptic Plasticity and Metaplasticity of Biological Synapse Realized in a KNbO3 Memristor for Application to Artificial Synapse. ACS Appl Mater Interfaces. 2018;10(30):25673-25682.
Lee, T. H., Hwang, H. G., Woo, J. U., Kim, D. H., Kim, T. W., & Nahm, S. (2018). Synaptic Plasticity and Metaplasticity of Biological Synapse Realized in a KNbO3 Memristor for Application to Artificial Synapse. ACS Applied Materials & Interfaces, 10(30), pp. 25673-25682. doi:10.1021/acsami.8b04550.
Lee TH, et al. Synaptic Plasticity and Metaplasticity of Biological Synapse Realized in a KNbO3 Memristor for Application to Artificial Synapse. ACS Appl Mater Interfaces. 2018 Aug 1;10(30):25673-25682. PubMed PMID: 29985576.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Synaptic Plasticity and Metaplasticity of Biological Synapse Realized in a KNbO3 Memristor for Application to Artificial Synapse. AU - Lee,Tae-Ho, AU - Hwang,Hyun-Gyu, AU - Woo,Jong-Un, AU - Kim,Dae-Hyeon, AU - Kim,Tae-Wook, AU - Nahm,Sahn, Y1 - 2018/07/19/ PY - 2018/7/10/pubmed PY - 2018/7/10/medline PY - 2018/7/10/entrez KW - amorphous KNbO3 films KW - artificial synapse KW - memristor KW - neuromorphic computing KW - synaptic metaplasticity SP - 25673 EP - 25682 JF - ACS applied materials & interfaces JO - ACS Appl Mater Interfaces VL - 10 IS - 30 N2 - Amorphous KNbO3 (KN) films were grown on a TiN/SiO2/Si substrate to synthesize a KN memristor as a potential artificial synapse. The Pt/KN/TiN memristor exhibited typical and reliable bipolar switching behavior with multiple resistance levels. It also showed the transmission properties of a biological synapse, with a good conductance modulation linearity. Moreover, the KN memristor can emulate various biological synaptic plasticity characteristics including short-term plasticity, long-term plasticity, spike-rate dependent plasticity, paired-pulse facilitation, and post-tetanic potentiation by controlling the number and rate of the potentiation spike. Spike-timing-dependent plasticity (STDP), which is an essential property of biological synapses, is also realized in the KN memristor. The synaptic plasticity of the KN memristor can be explained by oxygen vacancy movement and oxygen vacancy filaments. The metaplasticity of biological synapses was also implemented in the KN memristor, including the metaplasticity of long-term potentiation and depression, and of STDP. Therefore, the KN memristor could be used as an artificial synapse in neuromorphic computing systems. SN - 1944-8252 UR - https://www.unboundmedicine.com/medline/citation/29985576/Synaptic_Plasticity_and_Metaplasticity_of_Biological_Synapse_Realized_in_a_KNbO3_Memristor_for_Application_to_Artificial_Synapse_ L2 - https://dx.doi.org/10.1021/acsami.8b04550 DB - PRIME DP - Unbound Medicine ER -