Skyrmionics for Neuromorphic Technologies
Lead Research Organisation:
University of Manchester
Department Name: Computer Science
Abstract
In today's world of pervasive Information Technology (IT), there is a pressing need to develop novel computing paradigms to move beyond current architectures with the goal of achieving intelligent computing with superior efficiency. Modern, conventional, computers operate in a very different manner to that of the human brain. In stark contrast, the main building blocks of the human brain are neurons (the computing elements) and synapses (the adaptive memory elements) and neurons are massively interconnected with synapses. Since learning is intricately connected to synaptic behavior, this project seeks to build next-generation artificial synapses In particular, we will explore the potential of non-volatile artificial synapses, based on nanoscale magnets, for energy-efficient brain-inspired operations, also known as neuromorphic computing. In a market with products requiring an abundance of sensors at the edge (e.g. mobiles or wearables like smart watches), there is a recognised need for ultra-low power and always-on sensory data processing. Neuromorphic hardware is one of the most promising routes for Artificial Intelligence (AI) applications. We propose to demonstrate that nanoscale skyrmionics synapses (that use nanoscale whirling vortex-like magnetic states called skyrmions as information carriers) are ideal for energy-efficient smart edge-computing devices.
Organisations
- University of Manchester (Lead Research Organisation)
- Unité Mixte de Physique CNRS/Thales (Collaboration)
- Centre for Nanoscience and Nanotechnology (Collaboration)
- Paul Scherrer Institute (Project Partner)
- ETH Zurich (Project Partner)
- Mixed Unit of Physics CNRS/Thales (Project Partner)
- IBM Research GmbH (Project Partner)
Publications
Li Y
(2021)
Magnetic Bloch-point hopping in multilayer skyrmions and associated emergent electromagnetic signatures
in Physical Review B
Chen R
(2022)
Voltage-Controlled Skyrmionic Interconnect with Multiple Magnetic Information Carriers.
in ACS applied materials & interfaces
Chen R
(2023)
Correction to "Voltage-Controlled Skyrmionic Interconnect with Multiple Magnetic Information Carriers".
in ACS applied materials & interfaces
Chen R
(2023)
Encoding and Multiplexing Information Signals in Magnetic Multilayers with Fractional Skyrmion Tubes
in ACS Applied Materials & Interfaces
Li Y
(2024)
Tailoring energy barriers of Bloch-point-mediated transitions between topological spin textures
in Physical Review B
| Description | Horizon Europe Framework Programme |
| Amount | € 3,991,356 (EUR) |
| Funding ID | 101135729 |
| Organisation | European Commission |
| Sector | Public |
| Country | Belgium |
| Start | 01/2024 |
| End | 01/2028 |
| Title | Power profiling feature for SNNTorch |
| Description | We developed a new Power Profiling feature for SNNTorch, the popular open-source Python package for spiking neural networks (SNNs), extending PyTorch capabilities. We chose SNNTorch due to its popularity & uptake by the community (> 100,000 downloads & integration with Graphcore's IPUs, enabling a considerable reduction in energy consumption for SNNs users). Our feature estimates energy consumption for neural network inference & adapts to different hardware types, supporting both spiking and non-spiking networks. The feature is tailored to both network topology & hardware specifics. M. Lewandowski (team member from summer internship 2023 to February 2024) contributed it to the official repository as an experimental feature and it is expected that it will be merged into the master branch. |
| Type Of Material | Improvements to research infrastructure |
| Year Produced | 2023 |
| Provided To Others? | Yes |
| Impact | The power profiling code allows researchers to benchmark the overall power consumption of spiking neural networks against competing hardware and/or network topologies. It therefore will inform hardware- and network-level design decisions, both in our work, and in the research of the wider community. |
| URL | https://github.com/jeshraghian/snntorch/tree/Power-Profiling |
| Description | CNRS - Thales |
| Organisation | Unité Mixte de Physique CNRS/Thales |
| Country | France |
| Sector | Public |
| PI Contribution | We started a new collaboration with CNRS and Thales, that was inspired by our work on neuromorphic skyrmionic synapses and skyrmionic interconnects in the "Skyrmionics for Neuromorphic Technologies" project. We will work with CNRS/Thales on magnetic multilayers that support skyrmion transport and skyrmion detection, all crucial parts of a new skyrmionic synapse design. |
| Collaborator Contribution | CNRS will provide magnetic multilayers that are optimised for Skyrmion transport to complement our Manchester grown magnetic multilayers. Thales will provide know-how on skyrmion detection in order for our skyrmionic synapses to be implemented in a fully electrical way, not only relying on imaging. |
| Impact | As this a new collaboration we expect outputs and outcomes over the next 1 year. |
| Start Year | 2023 |
| Description | Collaboration with C2N: Centre for Nanoscience and Nanotechnology CNRS - Université Paris Saclay (Dr. Liza Herrera Diez) |
| Organisation | Centre for Nanoscience and Nanotechnology |
| Country | France |
| Sector | Public |
| PI Contribution | Our skyrmionics team members image the C2N provided samples, under controlled conditions, in an atomic force microscope at the National Graphene Institute. |
| Collaborator Contribution | C2N provides us with advance voltage-gating skyrmion-hosting samples in Manchester and access to MOKE imaging in their lab in France. |
| Impact | Ongoing experiments. |
| Start Year | 2025 |
| Description | ATOMS TO BITS: THE ALPHABET OF INTELLIGENCE V1.0 - Inaugural workshop |
| Form Of Engagement Activity | Participation in an activity, workshop or similar |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Professional Practitioners |
| Results and Impact | Our team, as part of the Skyrmionics for Neuromorphic Technologies grant (EP/V028189/1) organised a 1-day Brain-Inspired Computing Workshop on the 27th of February 2025 in Manchester. This was the inaugural ATOMS TO BITS: THE ALPHABET OF INTELLIGENCE V1.0 workshop. The event took a holistic approach and is dedicated to connecting the worlds of emerging materials research, memristive device engineering, and the development of hybrid memristive-CMOS neuromorphic computing systems. By focusing on technological applications, we sparked conversations and collaborations that can help shape the next generation of intelligent computing. There was international participation from leading experts, industrial research labs and spinouts. |
| Year(s) Of Engagement Activity | 2025 |
| URL | https://skyrmionics.org/2025/01/30/workshop-atoms-to-bits-the-alphabet-of-intelligence-v1-0/ |
| Description | Pint of Science May 2024 |
| Form Of Engagement Activity | A talk or presentation |
| Part Of Official Scheme? | No |
| Geographic Reach | Regional |
| Primary Audience | Public/other audiences |
| Results and Impact | We showcased our work on neuromorphic computing with magnetic skyrmions to a general audience as part of the 2024 Pint of Science festival, which took place at Station South in Levenshulme (he Skyrmionics team member Dr. WG is introducing nanoscale skyrmionic synapses). |
| Year(s) Of Engagement Activity | 2024 |
| URL | https://skyrmionics.org/2024/05/23/pint-of-science-festival-may-2024/ |
