Sahoo, Sourav ; Mondal, Sucheta ; Williams, Gwilym ; May, Andrew ; Ladak, Sam ; Barman, Anjan (2018) Ultrafast magnetization dynamics in a nanoscale three-dimensional cobalt tetrapod structure Nanoscale, 10 (21). pp. 9981-9986. ISSN 2040-3364
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Official URL: http://doi.org/10.1039/C7NR07843A
Related URL: http://dx.doi.org/10.1039/C7NR07843A
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.
Item Type: | Article |
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Source: | Copyright of this article belongs to Royal Society of Chemistry. |
ID Code: | 116195 |
Deposited On: | 07 Apr 2021 10:27 |
Last Modified: | 07 Apr 2021 10:27 |
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