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Updated: Sep 13, 2025

Synthesis of Cationized Magnetoferritin for Ultra-fast Magnetization of Cells
Published on: December 13, 2016
Probing Ultrafast Magnetization Dynamics via Synthetic Axion Fields
Leon Shaposhnikov1, Eduardo Barredo-Alamilla1, Frank Wilczek2,3,4,5
1ITMO University, School of Physics and Engineering, Saint Petersburg 197101, Russia.
None:
Spatial structuring of materials at subwavelength scales underlies the concept of metamaterials possessing exotic properties beyond those of the constituent media. Temporal modulation of material parameters enables further functionalities. Here, we show that high-frequency oscillations of spatially uniform magnetization generate an effective dynamic axion field embedding the amplitude and phase of magnetization oscillations. This allows one to map ultrafast magnetization dynamics using a probe signal with much lower frequency.
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