A magnetic skyrmion as a non-linear resistive element - a potential building block for reservoir computing
| Autor: | Mathias Kläui, Karin Everschor-Sitte, Diana Prychynenko, Kai Litzius, Matthias Sitte, Benjamin Krüger, Jairo Sinova, George I. Bourianoff |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Magnetoresistance
General Physics and Astronomy FOS: Physical sciences 02 engineering and technology Magnetic skyrmion Topology 01 natural sciences Condensed Matter - Strongly Correlated Electrons 0103 physical sciences 010306 general physics Block (data storage) Physics Resistive touchscreen Strongly Correlated Electrons (cond-mat.str-el) Skyrmion Reservoir computing Disordered Systems and Neural Networks (cond-mat.dis-nn) Condensed Matter - Disordered Systems and Neural Networks Physik (inkl. Astronomie) 021001 nanoscience & nanotechnology Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter - Other Condensed Matter Neuromorphic engineering 0210 nano-technology Realization (systems) Other Condensed Matter (cond-mat.other) |
| DOI: | 10.48550/arxiv.1702.04298 |
| Popis: | Inspired by the human brain, there is a strong effort to find alternative models of information processing capable of imitating the high energy efficiency of neuromorphic information processing. One possible realization of cognitive computing are reservoir computing networks. These networks are built out of non-linear resistive elements which are recursively connected. We propose that a skyrmion network embedded in frustrated magnetic films may provide a suitable physical implementation for reservoir computing applications. The significant key ingredient of such a network is a two-terminal device with non-linear voltage characteristics originating from single-layer magnetoresistive effects, like the anisotropic magnetoresistance or the recently discovered non-collinear magnetoresistance. The most basic element for a reservoir computing network built from "skyrmion fabrics" is a single skyrmion embedded in a ferromagnetic ribbon. In order to pave the way towards reservoir computing systems based on skyrmion fabrics, here we simulate and analyze i) the current flow through a single magnetic skyrmion due to the anisotropic magneto-resistive effect and ii) the combined physics of local pinning and the anisotropic magneto-resistive effect. Comment: 22 pages, 8 figures; author's name corrected |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|