Resonant modes of T-SKONE in Configuration I when excited by a sinusoidal driving field of frequency (A) 0.80 GHz (Mode 1), (B) 1.04 GHz (Mode 2), (C) 1.22 GHz (Mode 3), and (D) 1.85 GHz (Mode 4). The two left most columns plot the output oscillations along x and y, respectively. The four columns on the right plot the topological charge densities at times |$t\; = \;0$|⁠, |$T/4$|⁠, |$T/2$|⁠, and |$3T/4$|⁠, where |$T$| is the respective time period of oscillation. The color maps for topological charge density ranges from |$ - 1.5 \times {10^{14}}\,{m^{ - 2}}$| (magenta) to zero (green).