Regensburg 2025 – scientific programme
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MA: Fachverband Magnetismus
MA 31: Poster II
MA 31.39: Poster
Wednesday, March 19, 2025, 17:00–19:30, P1
Yttrium iron garnet nanostructures for spin-wave computing — •Jannis Bensmann1, Ahmad El Kadri1, Dmitrii Raskhodchikov1,2, Kirill O. Nikolaev3, Robert Schmidt1, Johannes Kern1, Shraddha Choudhary1, Vladislav E. Demidov3, Steffen Michaelis de Vasconcellos1, Wolfram H. P. Pernice1,2,4, Sergej O. Demokritov3, and Rudolf Bratschitsch1 — 1University of Münster, Institute of Physics and Center for Nanotechnology, 48149 Münster, Germany — 2University of Münster, Center for Soft Nanoscience, 48149 Münster, Germany — 3University of Münster, Institute of Applied Physics, 48149 Münster, Germany — 4Heidelberg University, Kirchhoff-Institute for Physics, 69120 Heidelberg, Germany
The ever-increasing demand for computing power, particularly driven by the recent advances in the field of artificial intelligence, has triggered research into novel system architectures to improve the performance of current computing technology. Here, spintronics appears as a promising candidate, as spin waves are energy-efficient, broadband (up to THz), and can have wavelengths down to the nanometer scale. In order to realize hardware-based spin-wave computing, we employ nanofabrication techniques to create devices from 100-nm-thick films of yttrium iron garnet (YIG), a material well known for its exceptional low-damping. We evaluate the performance of individual building blocks using optical measurements such as Brillouin light scattering, which provides detailed insights into the spin-wave propagation.
Keywords: spin waves; spin-wave computing