Regensburg 2019 – scientific programme

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MA: Fachverband Magnetismus

MA 8: Magnonics

MA 8.1: Talk

Monday, April 1, 2019, 15:00–15:15, H52

Integrated magnonic half-adder — •Qi Wang¹, Roman Verba², Thomas Brächer¹, Philipp Pirro¹, and Andrii Chumak¹ — ¹Fachbereich Physik, Technische Universität Kaiserslautern, Kaiserslautern, Germany — ²Institute of Magnetism, Kyiv 03680, Ukraine

Spin waves and their quanta, magnons, open up a promising branch of high-speed and low-power information processing. Several important milestones were achieved recently in the realization of separate magnonic data processing units. Nevertheless, the realization of an integrated magnonic circuit consisting of at least two logic gates and suitable for further integration is still an unresolved challenge. Here we demonstrate such an integrated circuit. We show a magnonic half-adder using micromagnetic simulations. The magnonic half-adder has a strikingly simple design, consisting of two components only. The first one is a linear directional coupler that combines two inputs in a planar fashion. The second one is a nonlinear directional coupler in which the coupling strength is strongly dependent on the input power and which perform simultaneously a XOR and an AND logic operation. All information is carried and controlled exclusively by magnons in the circuit.