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The background corrected |S21| data as a function of the in-plane applied field for an excitation frequency of 12 GHz. The field is applied along an antidot lattice edge. Ferromagnetic resonance modes correspond to minima in the |S21| data. The modes are labeled by A1 and A2, and the non-labeled mode between A1 and A2 is a satellite mode.
(Color online) Simulated (filled symbols) and experimental (empty symbols) frequency and applied field resonance conditions in the antidot array with field applied along a lattice edge. Simulated modes A1 (filled squares), A2 (filled up-pointing triangles) and C (filled down-pointing triangles) are shown. Experimentally seen modes are mode A1 (empty squares) and mode A2 (empty up-pointing triangles). Mode C is not detected experimentally. The inset shows the frequency dependence on magnetic field in an unpatterned film for experiment and simulation.
(Color online) The three modes profiles (a) Type C, (b) Type A1, (c) Type A2, calculated from simulation, for the antidot arrays under a large magnetic field of 400 kA/m and the evolution of spin wave mode profile A2 from low (100 kA/m) to high (400 kA/m) field in the lattice direction. The applied field direction is shown in (a). The magnetic field strength is (d) 100 kA/m; (e) 150 kA/m; (f) 400 kA/m.
(Color online) The distribution of y component demagnetizing field as a contour plot in unit A/m for the antidot array with applied field 100 kA/m (a) and 400 kA/m (b). (c) The static demagnetizing field strengths at locations 1, 2, and 3 (denoted in (b)) for different applied field strengths.
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