Results 61 to 70 of about 1,500,046 (301)

Monolithic Oxidation Enables Ultrathin Vertically Graded Tantalum Oxide for Low‐Voltage, Low‐Variability Memristive Switching

Advanced Functional Materials, EarlyView.
Monolithic UV‐ozone oxidation of Ta forms an ultrathin Ta2O5/TaOx bilayer enabling resistive switching with a vertical defect gradient. A stoichiometric surface layer over an oxygen‐deficient sublayer promotes localized filament nucleation near the top interface, enabling low‐voltage operation, and reduced cycle‐to‐cycle variability.
Seunghoon Yang, Dong Hyun Lee, Conan Weiland, Won‐Il Lee, Kim Kisslinger, Mingzhao Liu, Aswin kumar Anbalagan, Xiao Tong, Soumyajit Mandal, Nikhil Tiwale, Houk Jang, Chang‐Yong Nam   +11 more
wiley   +1 more source

Serotonin drives a novel GABAergic synaptic current recorded in rat cerebellar purkinje cells: a lugaro cell to purkinje cell synapse [PDF]

, 2003
We recorded a novel fast GABAergic synaptic current in cerebellar Purkinje cells in rat brain slices using patch-clamp techniques. Because of a relatively low sensitivity to bicuculline, these currents can be recorded under conditions in which basket and
Isabel Dean, Frances A. Edwards, Dean, I., Susan J. Robertson, Edwards, F.A., Robertson, S.J.   +5 more
core   +1 more source

Multimode Oxide‐Based Optoelectronic Memtransistor for In‐Sensor Vision Processing

Advanced Functional Materials, EarlyView.
A multimode optoelectronic memtransistor (OEMT) is demonstrated for vision explainable artificial intelligence (VXAI) hardware. By integrating optical sensing, electrical masking, and non‐volatile memory, the device enables key operations required for generating saliency information.
Min Gu Lee, Geunyoung Kim, Hwa Young Kim, Do Hoon Kim, Hanchan Song, Huisu Noh, Jungwan Noh, Seungwoo Lee, Sang‐Hee Ko Park, Himchan Cho, Kyung Min Kim   +10 more
wiley   +1 more source

Presynaptically localized cyclic GMP-dependent protein kinase 1 is a key determinant of spinal synaptic potentiation and pain hypersensitivity [PDF]

, 2012
Synaptic long-term potentiation (LTP) at spinal neurons directly communicating pain-specific inputs from the periphery to the brain has been proposed to serve as a trigger for pain hypersensitivity in pathological states.
Todd, A. J., Martina Kurejova, Thomas Kuner, Irmgard Tegeder (179372), Hu, S.J., Kurejova Martina, Bali, K.K., Agarwal, Nitin, Anke Tappe-Theodor, Bali, Kiran Kumar, Polgar Erika, Franz Hofmann (179398), Todd, A.J., Lewin, G., Kuner Thomas, Ceng Luo (179354), Feil, Robert, Jens Schlossmann, Polgar, E., Gangadharan Vijayan, Andrew J Todd, Kurejova, Martina, Feil, Susanne, Ceng Luo, Hu, S., Susanne Feil (179376), Andrew J. Todd (179384), Feil, R., Rohini Kuner (179428), Erika Polgar (5649442), Rohini Kuner, Hu, San-Jue, Liu Da-Lu, Liu, D., Kuner, Thomas, San-Jue Hu (179417), Feil, S., Tegeder, Irmgard, Tappe-Theodor Anke, Kuner, R., Nitin Agarwal (179363), Robert Feil (28669), Agarwal, N., Agarwal Nitin, Xie, R.G., Robert Feil, Kiran Kumar Bali (179358), Da-Lu Liu (179408), Erika Polgar, Kuner, T., Tappe, Anke, Gary Lewin (179380), Liu, Da-Lu, Xie, R. G., Jens Schlossmann (179389), Nitin Agarwal, Luo, Ceng, Luo, C., Vijayan Gangadharan, Hu, S. J., Xie, Rou-Gang, Hofmann Franz, Da-Lu Liu, Rou-Gang Xie (179362), Bali Kiran Kumar, Tappe-Theodor, A., Kuner, Rohini, Lewin Gary, Liu, D. L., Kiran Kumar Bali, Irmgard Tegeder, Polgár, Erika, Hofmann, Franz, Tegeder Irmgard, Vijayan Gangadharan (179356), Rou-Gang Xie, Schlossmann Jens, Franz Hofmann, Feil Susanne, Hu San-Jue, San-Jue Hu, Xie Rou-Gang, Gangadharan, Vijayan, Todd Andrew J., Feil Robert, Martina Kurejova (179365), Bali, K. K., Gary Lewin, Susanne Feil, Anke Tappe-Theodor (179367), Lewin, Gary R., Schlossmann, Jens, Liu, D.L., Thomas Kuner (162293), Schlossmann, J., Luo Ceng, Gangadharan, V., Hofmann, F., Kuner Rohini, Todd, Andrew J., Xie, R., Tegeder, I., Kurejova, M., Luo, C;Gangadharan, V;Bali, KK;Xie, RG;Agarwal, N;Kurejova, M;Tappe-Theodor, A;Tegeder, I;Feil, S;Lewin, G;Polgar, E;Todd, AJ;Schlossmann, J;Hofmann, F;Liu, DL;Hu, SJ;Feil, R;Kuner, T;Kuner, R   +103 more
core   +2 more sources

Bio‐Derived Polyelectrolyte Additive–Induced Interfacial Ion‐Diffusion Barriers for Nonvolatile Organic Artificial Synapses

Advanced Functional Materials, EarlyView.
Sodium alginate regulates interfacial ion transport and retention in electrolyte‐gated synaptic transistors. The carboxylate‐rich polymeric network forms a dynamic interfacial ion‐diffusion barrier that facilitates ion injection during programming while suppressing ion back‐diffusion, thereby stabilizing the electrochemically doped channel state.
Chaeyeon Han, Donghwa Lee, Hyeonse Kim, Hyoik Jang, Sein Chung, Geun Yeol Bae, Eunho Lee   +6 more
wiley   +1 more source

A comprehensive review of advanced trends: from artificial synapses to neuromorphic systems with consideration of non-ideal effects

Frontiers in Neuroscience
A neuromorphic system is composed of hardware-based artificial neurons and synaptic devices, designed to improve the efficiency of neural computations inspired by energy-efficient and parallel operations of the biological nervous system.
Kyuree Kim, Min Suk Song, Hwiho Hwang, Sungmin Hwang, Hyungjin Kim   +4 more
doaj   +1 more source

Noise‐Limited Bit Precision in Ferroelectric Synaptic Transistors for High‐Resolution Neuromorphic Computing

Advanced Functional Materials, EarlyView.
Low‐frequency noise spectroscopy defines the resolvable conductance states of synaptic FeFETs by coupling read‐current fluctuation with usable dynamic range. The resulting noise‐limited bit precision establishes a universal, device‐agnostic reliability metric beyond the memory window, enabling quantitative benchmarking and rational design of high ...
Jaehong Park, Yeonseop Shin, Changhyeon Han, Sangwoo Kim, Eunchan Park, Youngchan Cho, Jaehong Min, Hyunjun Ahn, Jaekyoung Park, Cheol‐Woong Yang, Jangsaeng Kim, Daewoong Kwon, Wonjun Shin   +12 more
wiley   +1 more source

Recent Progress in Synaptic Devices Based on 2D Materials

Advanced Intelligent Systems, 2020
Diverse synaptic plasticity with a wide range of timescales in biological synapses plays an important role in memory, learning, and various signal processing with exceptionally low power consumption.
Linfeng Sun, Wei Wang, Heejun Yang
doaj   +1 more source

Modulation of Synaptic Amplification in Sympathetic Ganglia [PDF]

, 2013
The purpose of this dissertation was to assess synaptic integration in neurons from the rat superior cervical ganglion (SCG) using complex temporal patterns of virtual synaptic activity that mimic in vivo conditions.
Springer, Mitchell
core  

Two Coexisting Pathways to Volatility in Valence‐Change Memory Devices

Advanced Functional Materials, EarlyView.
Volatile VCM‐type memristive devices exhibit current relaxation after resistive switching, but their microscopic origin remains debated. Using pulsed measurements and a new Tunnel‐DLTS approach on Pt/SrTiO3/Nb:SrTiO3 devices, we show that post‐SET volatility is predominantly ionic, while electronic contributions—arising from quasi‐Fermi‐level ...
Johannes Hellwig, Clemens Wittberg, Dimitrios Spithouris, Regina Dittmann   +3 more
wiley   +1 more source