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NEURAMORPH SIGNED

Dynamics of Amorphous Semiconductors: Intrinsic Nature and Application in Neuromorphic Hardware

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 NEURAMORPH project word cloud

Explore the words cloud of the NEURAMORPH project. It provides you a very rough idea of what is the project "NEURAMORPH" about.

materials    systematically    networks    logic    leap    electrical    nature    modifications    elucidate    semiconductors    neural    plasticity    after    full    promises    attempts    excitability    compact    dynamics    device    circuits    computers    imperative    computing    neuromorphic    variety    perfecting    immense    intrinsic    found    amorphous    composition    evident    prototype    synaptic    memristive    evolution    dependent    synapses    neuron    circuit    structural    spike    fundamental    proof    neuramorph    artificial    regulate    neurons    hardware    chip    principles    spikes    possess    efficiency    decades    amorphization    employed    inherent    molecular    timing    changing    simulations    naturally    prevent    temporal    mimic    create    reaching    varied    elemental    larger    incorporating    relationship    synapse    transmitted    biological    experimental    last    poses    relaxation    weight    imitating   

Project "NEURAMORPH" data sheet

The following table provides information about the project.

Coordinator
RHEINISCH-WESTFAELISCHE TECHNISCHE HOCHSCHULE AACHEN 

Organization address
address: TEMPLERGRABEN 55
city: AACHEN
postcode: 52062
website: www.rwth-aachen.de

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Project website http://www.institut-1a.physik.rwth-aachen.de/cms/INSTITUT-1A/Forschung/Dynamik-amorpher-Halbleiter/
 Total cost 1˙499˙468 €
 EC max contribution 1˙499˙468 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2014-STG
 Funding Scheme ERC-STG
 Starting year 2015
 Duration (year-month-day) from 2015-10-01   to  2021-09-30

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    RHEINISCH-WESTFAELISCHE TECHNISCHE HOCHSCHULE AACHEN DE (AACHEN) coordinator 1˙499˙468.00

Map

 Project objective

After decades of perfecting the established way of computing, it is now evident that the fundamental logic of today’s computers will prevent them from ever reaching the efficiency of neural networks as found in nature. Neuromorphic hardware promises a leap forward by following the inherent working principles of biological neural networks. In very-large-scale integrated neuromorphic circuits incorporating an immense number of artificial neurons, the even much larger number of synapses poses the challenge of imitating especially the synaptic functionality in a most compact way. Over the last years, various memristive devices have been proposed to represent the weight of a synapse, determining how well electrical spikes are transmitted from one neuron to another. Existing attempts to achieve spike-timing-dependent plasticity, however, possess inherent problems. The NEURAMORPH project aims to develop a simple and compact circuit element to regulate the access to the memristive device for weight modifications. The dynamics of electrical excitability intrinsic to the employed amorphous semiconductors will naturally be able to mimic spike-timing-dependent plasticity. For full control over the properties of these synaptic access elements, a fundamental understanding of the relaxation processes in such amorphous materials is imperative. To this end, amorphization conditions will be systematically varied over a wide-range to create very distinct amorphous states. As a measure for relaxation the temporal evolution of their electrical properties will then be investigated. Based on experimental results for a variety of materials, molecular dynamics simulations will be employed to elucidate the relationship between elemental composition, structural dynamics and changing electrical excitability. Finally, as proof of concept, a prototype of a neuromorphic chip will be developed incorporating the new kind of synaptic device.

 Publications

year authors and title journal last update
List of publications.
2019 Martin Rütten, Andreas Geilen, Abu Sebastian, Daniel Krebs, Martin Salinga
Localised states and their capture characteristics in amorphous phase-change materials
published pages: , ISSN: 2045-2322, DOI: 10.1038/s41598-019-43035-7
Scientific Reports 9/1 2019-10-07
2019 Benedikt Kersting, Martin Salinga
Exploiting nanoscale effects in phase change memories
published pages: 357-370, ISSN: 1359-6640, DOI: 10.1039/c8fd00119g
Faraday Discussions 213 2019-04-13
2019 Philip Bartlett, Alexandra I. Berg, Marco Bernasconi, Simon Brown, Geoffrey Burr, Cina Foroutan-Nejad, Ella Gale, Ruomeng Huang, Daniele Ielmini, Gabriela Kissling, Vladimir Kolosov, Michael Kozicki, Hisao Nakamura, Konstantin Rushchanskii, Martin Salinga, Alexander Shluger, Damien Thompson, Ilia Valov, Wei Wang, Rainer Waser, R. Stanley Williams
Phase-change memories (PCM) – Experiments and modelling: general discussion
published pages: 393-420, ISSN: 1359-6640, DOI: 10.1039/c8fd90064g
Faraday Discussions 213 2019-04-13
2018 Martin Salinga, Benedikt Kersting, Ider Ronneberger, Vara Prasad Jonnalagadda, Xuan Thang Vu, Manuel Le Gallo, Iason Giannopoulos, Oana Cojocaru-Mirédin, Riccardo Mazzarello, Abu Sebastian
Monatomic phase change memory
published pages: 681-685, ISSN: 1476-1122, DOI: 10.1038/s41563-018-0110-9
Nature Materials 17/8 2019-04-13
2018 Manuel Le Gallo, Daniel Krebs, Federico Zipoli, Martin Salinga, Abu Sebastian
Collective Structural Relaxation in Phase-Change Memory Devices
published pages: 1700627, ISSN: 2199-160X, DOI: 10.1002/aelm.201700627
Advanced Electronic Materials 4/9 2019-04-13
2016 Matthias Kaes, Martin Salinga
Impact of defect occupation on conduction in amorphous Ge2Sb2Te5
published pages: 1-12, ISSN: 2045-2322, DOI: 10.1038/srep31699
Scientific Reports 6/1 2019-05-28

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