Dresden 2017 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 27: Spintronics (incl. Quantum Dynamics)

MA 27.3: Vortrag

Dienstag, 21. März 2017, 14:30–14:45, HSZ 301

A three-input majority gate with chiral magnetic solitonsKonstantinos Koumpouras1, Dmitry Yudin2, Danny Thonig1, Christoph Adelmann3, Anders Bergman1, Olle Eriksson1, and •Manuel Pereiro11Department of Physics and Astronomy, University Uppsala, Sweden — 2ITMO University, Saint Petersburg 197101, Russia — 3IMEC vzw. Kapeldreef 75, B-3001 Leuven, Belgium

In magnetic materials, nontrivial spin textures may emerge owing to the competition among different types of magnetic interactions. In particular, chiral magnetic solitons, represent topologically protected spin configuration with particle-like properties, that are ideally suited to perform logical operations. Based on atomistic spin dynamics simulations, we propose to make use of magnetic solitons in a functional and dynamic 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, allowing to perform logical operations. As examples we illustrate how the proposed device can be used to perform logical relations such as Boolean AND and OR.

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