Figure 1: Absorption spectra before and after mode selection.
From: From chaos to selective ordering of vortex cores in interacting mesomagnets
(a) Atomic force microscopy image of the connected double-disk structure with dimensions of 2 × 1 μm2. (b) Schematic of the CPW with connected double disks. (c) Absorption spectrum obtained at zero magnetic field with two absorption peaks corresponding to p1p2=−1 and +1 at 265 and 305 MHz, respectively. The vortex core gyration in each disk is also illustrated. The solid line illustrates the chirality of the in-plane magnetization. The dashed lines define the direction of vortex core trajectories. (d) Absorption spectra obtained after high RF-amplitude treatment at fixed frequencies of ω↑↓ (red curve) and ω↑↑ (blue curve). The insets show the resultant vortex core polarity combination in the disks.
