A majority gate with chiral magnetic solitons
| Autor: | Olle Eriksson, Christoph Adelmann, Anders Bergman, Manuel Pereiro, Dmitry Yudin, Konstantinos Koumpouras |
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| Rok vydání: | 2018 |
| Předmět: |
Electromagnetic field
Physics Ideal (set theory) Spin dynamics Condensed Matter - Mesoscale and Nanoscale Physics Logical operations FOS: Physical sciences 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Topology 01 natural sciences Logical relations Mesoscale and Nanoscale Physics (cond-mat.mes-hall) 0103 physical sciences General Materials Science Electric current 010306 general physics 0210 nano-technology Chirality (chemistry) Spin-½ |
| Zdroj: | Journal of physics. Condensed matter : an Institute of Physics journal. 30(37) |
| ISSN: | 1361-648X |
| Popis: | In magnetic materials nontrivial spin textures may emerge owing to the competition among different types of magnetic interactions. Among such spin textures, chiral magnetic solitons represent topologically protected spin configurations with particle-like properties. Based on atomistic spin dynamics simulations, we demonstrate that these chiral magnetic solitons are ideal to use for logical operations, and we demonstrate the functionality of a three-input majority gate, in which the input states can be controlled by applying an external electromagnetic field or spin-polarized currents. One of the main advantages of the proposed device is that the input and output signals are encoded in the chirality of solitons, that may be moved, allowing to perform logical operations using only minute electric currents. As an example we illustrate how the three input majority gate can be used to perform logical relations, such as Boolean AND and OR. 5 pages, 2 figures. Supplementary information is also attached |
| Databáze: | OpenAIRE |
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