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  1. Synthetic antiferromagnet (SAF) nanostructures with an interfacial Dzyaloshinskii–Moriya interaction can host topologically distinct spin textures, such as skyrmions, and therefore, are regarded as promising candidates for both spintronics and magnonics applications. Here, we present comprehensive micromagnetic simulations of such material systems and discuss the rich phase diagrams that contain various types of magnetic configurations. Aside from the static properties, we further discuss the resonant excitations of the calculated magnetic states, which include individual skyrmions and skyrmioniums. Finally, the internal modes of SAF skyrmion clusters are studied and discussed in the context of magnetic sensing applications based on the dynamic fingerprint in broadband ferromagnetic resonance measurements. 
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  2. null (Ed.)