Abstract
We show that chemical fixation enables top-down micro-machining of large periodic 3D arrays of protein-encapsulated magnetic nanoparticles (NPs) without loss of order. We machined 3D micro-cubes containing a superlattice of NPs by means of focused ion beam etching, integrated an individual micro-cube to a thin-film coplanar waveguide and measured the resonant microwave response. Our work represents a major step towards well-defined magnonic metamaterials created from the self-assembly of magnetic nanoparticles.
Original language | English |
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Article number | 155301 |
Journal | Nanotechnology |
Volume | 28 |
Issue number | 15 |
DOIs | |
Publication status | Published - 15 Mar 2017 |
Keywords
- chemical fixation
- ferritin
- ferromagnetic resonance
- magnetic nanoparticle
- magnonic metamaterial
- magnonics
- self-assembly