Nanoscale spin-wave circuits based on engineered reconfigurable spin-textures

Edoardo Albisetti, Daniela Petti, Giacomo Sala, Raffaele Silvani, Silvia Tacchi, Simone Finizio, Sebastian Wintz, Annalisa Calò, Xiaorui Zheng, Jörg Raabe, Elisa Riedo, Riccardo Bertacco

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Abstract

Magnonics is gaining momentum as an emerging technology for information processing. The wave character and Joule heating-free propagation of spin-waves hold promises for highly efficient computing platforms, based on integrated magnonic circuits. The realization of such nanoscale circuitry is crucial, although extremely challenging due to the difficulty of tailoring the nanoscopic magnetic properties with conventional approaches. Here we experimentally realize a nanoscale reconfigurable spin-wave circuitry by using patterned spin-textures. By space and time-resolved scanning transmission X-ray microscopy imaging, we directly visualize the channeling and steering of propagating spin-waves in arbitrarily shaped nanomagnonic waveguides, with no need for external magnetic fields or currents. Furthermore, we demonstrate a prototypic circuit based on two converging nanowaveguides, allowing for the tunable spatial superposition and interference of confined spin-waves modes. This work paves the way to the use of engineered spin-textures as building blocks of spin-wave based computing devices.

Original languageEnglish (US)
Article number56
JournalCommunications Physics
Volume1
Issue number1
DOIs
StatePublished - Dec 1 2018

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Albisetti, E., Petti, D., Sala, G., Silvani, R., Tacchi, S., Finizio, S., Wintz, S., Calò, A., Zheng, X., Raabe, J., Riedo, E., & Bertacco, R. (2018). Nanoscale spin-wave circuits based on engineered reconfigurable spin-textures. Communications Physics, 1(1), [56]. https://doi.org/10.1038/s42005-018-0056-x