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Memristors with diffusive dynamics as synaptic emulators for neuromorphic computing.
Nat Mater. 2017 01; 16(1):101-108.NM

Abstract

The accumulation and extrusion of Ca2+ in the pre- and postsynaptic compartments play a critical role in initiating plastic changes in biological synapses. To emulate this fundamental process in electronic devices, we developed diffusive Ag-in-oxide memristors with a temporal response during and after stimulation similar to that of the synaptic Ca2+ dynamics. In situ high-resolution transmission electron microscopy and nanoparticle dynamics simulations both demonstrate that Ag atoms disperse under electrical bias and regroup spontaneously under zero bias because of interfacial energy minimization, closely resembling synaptic influx and extrusion of Ca2+, respectively. The diffusive memristor and its dynamics enable a direct emulation of both short- and long-term plasticity of biological synapses, representing an advance in hardware implementation of neuromorphic functionalities.

Authors+Show Affiliations

Department of Electrical and Computer Engineering, University of Massachusetts, Amherst, Massachusetts 01003, USA.Department of Electrical and Computer Engineering, University of Massachusetts, Amherst, Massachusetts 01003, USA.Department of Physics, Loughborough University, Loughborough LE11 3TU, UK.Department of Electrical and Computer Engineering, University of Massachusetts, Amherst, Massachusetts 01003, USA.Department of Electrical and Computer Engineering, University of Massachusetts, Amherst, Massachusetts 01003, USA.Department of Electrical and Computer Engineering, University of Massachusetts, Amherst, Massachusetts 01003, USA.Hewlett Packard Labs, Palo Alto, California 94304, USA.Hewlett Packard Labs, Palo Alto, California 94304, USA.Hewlett Packard Labs, Palo Alto, California 94304, USA.Hewlett Packard Labs, Palo Alto, California 94304, USA.Air Force Research Lab, Information Directorate, Rome, New York 13441, USA.Air Force Research Lab, Information Directorate, Rome, New York 13441, USA.Biology Department, University of Massachusetts, Amherst, Massachusetts 01003, USA.Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, USA.Hewlett Packard Labs, Palo Alto, California 94304, USA.Department of Electrical and Computer Engineering, University of Massachusetts, Amherst, Massachusetts 01003, USA.Department of Electrical and Computer Engineering, University of Massachusetts, Amherst, Massachusetts 01003, USA.

Pub Type(s)

Journal Article
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

27669052

Citation

Wang, Zhongrui, et al. "Memristors With Diffusive Dynamics as Synaptic Emulators for Neuromorphic Computing." Nature Materials, vol. 16, no. 1, 2017, pp. 101-108.
Wang Z, Joshi S, Savel'ev SE, et al. Memristors with diffusive dynamics as synaptic emulators for neuromorphic computing. Nat Mater. 2017;16(1):101-108.
Wang, Z., Joshi, S., Savel'ev, S. E., Jiang, H., Midya, R., Lin, P., Hu, M., Ge, N., Strachan, J. P., Li, Z., Wu, Q., Barnell, M., Li, G. L., Xin, H. L., Williams, R. S., Xia, Q., & Yang, J. J. (2017). Memristors with diffusive dynamics as synaptic emulators for neuromorphic computing. Nature Materials, 16(1), 101-108. https://doi.org/10.1038/nmat4756
Wang Z, et al. Memristors With Diffusive Dynamics as Synaptic Emulators for Neuromorphic Computing. Nat Mater. 2017;16(1):101-108. PubMed PMID: 27669052.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Memristors with diffusive dynamics as synaptic emulators for neuromorphic computing. AU - Wang,Zhongrui, AU - Joshi,Saumil, AU - Savel'ev,Sergey E, AU - Jiang,Hao, AU - Midya,Rivu, AU - Lin,Peng, AU - Hu,Miao, AU - Ge,Ning, AU - Strachan,John Paul, AU - Li,Zhiyong, AU - Wu,Qing, AU - Barnell,Mark, AU - Li,Geng-Lin, AU - Xin,Huolin L, AU - Williams,R Stanley, AU - Xia,Qiangfei, AU - Yang,J Joshua, Y1 - 2016/09/26/ PY - 2016/03/29/received PY - 2016/08/17/accepted PY - 2016/11/1/pubmed PY - 2016/11/1/medline PY - 2016/9/27/entrez SP - 101 EP - 108 JF - Nature materials JO - Nat Mater VL - 16 IS - 1 N2 - The accumulation and extrusion of Ca2+ in the pre- and postsynaptic compartments play a critical role in initiating plastic changes in biological synapses. To emulate this fundamental process in electronic devices, we developed diffusive Ag-in-oxide memristors with a temporal response during and after stimulation similar to that of the synaptic Ca2+ dynamics. In situ high-resolution transmission electron microscopy and nanoparticle dynamics simulations both demonstrate that Ag atoms disperse under electrical bias and regroup spontaneously under zero bias because of interfacial energy minimization, closely resembling synaptic influx and extrusion of Ca2+, respectively. The diffusive memristor and its dynamics enable a direct emulation of both short- and long-term plasticity of biological synapses, representing an advance in hardware implementation of neuromorphic functionalities. SN - 1476-1122 UR - https://www.unboundmedicine.com/medline/citation/27669052/Memristors_with_diffusive_dynamics_as_synaptic_emulators_for_neuromorphic_computing_ L2 - http://dx.doi.org/10.1038/nmat4756 DB - PRIME DP - Unbound Medicine ER -
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