AI Article Synopsis
- Three-dimensional magnetic nanostructures are of great interest for future ultrahigh density magnetic storage due to their complex shapes.
- This study investigates the ultrafast magnetization dynamics of tetrapod-shaped magnetic structures created through two-photon lithography and electrodeposition.
- Advanced microscopy techniques and simulations show that these complex shapes influence how spin waves behave, contributing vital knowledge for the development of spintronic devices.
Article Abstract
Three-dimensional magnetic nanostructures are now attracting intense interest due to their potential as ultrahigh density future magnetic storage devices. Here, we report on the study of ultrafast magnetization dynamics of a complex three-dimensional magnetic nanostructure. Arrays of magnetic tetrapod structures were fabricated using a combination of two-photon lithography (TPL) and electrodeposition. All-optical time-resolved magneto-optical Kerr microscopy was exploited to probe the spin-wave modes from the junction of a single tetrapod structure. Micromagnetic simulations reveal that the nature of these modes originates from the intricate three-dimensional tetrapod structure. Our findings enhance the basic knowledge about the dynamic control of spin waves in complex three-dimensional magnetic elements which are imperative for the construction of modern spintronic devices.
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| http://dx.doi.org/10.1039/c7nr07843a | DOI Listing |
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