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Illustrations from DALL-E for Spin-Wave Voices
DALLE-E did a great job for the title of our recent Ars Electronica project Spin-Wave Voices. Thanks to DALLE-E for a nice icon.
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Spin-Wave Voices
We are in a search of alternative ways of living, more efficient, less energy consuming ways. But some of the modern technologies are so small and fast that they are already out of the range of our perception. The future will bring something even more sophisticated. Did you ever try to imagine how all those…
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Nonstationary spin waves in a single rectangular permalloy microstrip under uniform magnetic excitation
Contributed talk at Joint European Magnetic Symposia 2022 (JEMS2022) in Warsaw, Poland, 24-29 July 2022. Abstract Over the past decades charge-based computing devices decreased drastically in size, coinciding with an increasing and even limiting heat dissipation, which triggered an active search for new ways of information processing. In that regard, magnons or spin waves are…
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Nonstationary spin waves in a single rectangular permalloy microstrip under uniform magnetic excitation
Ferromagnetic resonance modes in a single rectangular Ni80Fe20 microstrip were directly imaged using time-resolved scanning transmission x-ray microscopy combined with a phase-locked ferromagnetic resonance excitation scheme, and the findings were corroborated by micromagnetic simulations. Although under uniform excitation in a single confined microstructure typically standing spin waves are expected, all imaged spin waves showed a…
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Manipulating spin waves in ferromagnetic microstructures: redirection of propagation of magnons
Official starting date of the ESP 4 Project “Manipulating spin waves in ferromagnetic microstructures: redirection of propagation of magnons” funded within the ESPRIT (“Early Stage Programme: Research, Innovation and Training”) Career Advancement for Postdocs from FWF. Abstract Over the past decades computing devices decreased drastically in size. When an electric charge is used for the…
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Direct Imaging of the ac Component of Pumped Spin Polarization with Element Specificity
Spin pumping in a ferromagnet-nonferromagnet heterostructure is directly imaged with spatial resolution as well as element selectivity. The time-resolved detection in scanning transmission x-ray microscopy allows us to directly probe the spatial extent of the ac spin polarization in Co-doped ZnO, which is generated by spin pumping from an adjacent permalloy microstrip. Comparing the relative…
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