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(Color online) Concept of the investigated lateral spin-wave waveguide. The distribution of the spin-wave intensity measured by BLS microscopy is color coded where dark (bright) indicates minimum (maximum) intensity, respectively. The measured intensity has been normalized to compensate for damping.
(Color online) (a) Frequencies of different lateral spin-wave modes as a function of the wave vector component along the waveguide (x-direction). The dashed lines depict the wave vectors for a fixed excitation frequency. (b) Schematic spin-wave mode profiles in y-direction.
(Color online) (a) Comparison of the measured (left sub-panels) and calculated (right sub-panels) spin-wave interference patterns for different frequencies. (b) Black diamonds show the periodicity d per extracted from the interference patterns as illustrated in (a) as a function of the spin-wave frequency. The curve depicts calculated values.
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