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3D Magnonic Conduits by Direct Write Nanofabrication.
Sebastian Lamb-Camarena1,2, Fabrizio Porrati3, Alexander Kuprava3
1Faculty of Physics, Nanomagnetism and Magnonics, University of Vienna, Boltzmanngasse 5, A-1090 Vienna, Austria.
Nanomaterials (Basel, Switzerland)
|July 14, 2023
Summary
Researchers developed 3D magnonic nanoconduits using focused-electron-beam induced deposition (FEBID). Brillouin light scattering spectroscopy revealed distinct spin-wave resonances in these 3D structures compared to 2D, paving the way for advanced magnonic circuits.
Area of Science:
- Nanomagnetism
- Spintronics
- Additive Manufacturing
Background:
- Magnonics offers potential for advanced information processing.
- Current magnonic circuits are limited to 2D structures.
- Extending magnonics into the third dimension is crucial for miniaturization.
Purpose of the Study:
- To introduce and characterize three-dimensional (3D) magnonic nanoconduits.
- To explore the fabrication of 3D magnetic nanoarchitectures.
- To investigate spin-wave dynamics in 3D magnonic structures.
Main Methods:
- Fabrication of 3D magnonic nanoconduits using focused-electron-beam induced deposition (FEBID).
- Characterization using Brillouin light scattering (BLS) spectroscopy.
- Spatially resolved analysis of spin-wave resonances.
Main Results:
- Successful fabrication of 3D magnonic nanoconduits via FEBID.
- Demonstration of significant differences in spin-wave resonances between 2D and 3D nanostructures.
- Attribution of resonance differences to geometrically induced non-uniformity in the internal magnetic field.
Conclusions:
- FEBID is a viable additive manufacturing technique for creating magnetic 3D nanoarchitectures.
- This study presents the first BLS characterization of FEBID-fabricated magnonic conduits.
- The findings enable the development of next-generation 3D magnonic devices.
