Ultrashort spin wave in a nickel iron layer

Title Ultrashort spin wave in a nickel iron layer
Description An ultrashort spin wave (red) running through a nickel iron layer. Towards the center of the layer, the magnetic direction (blue arrows) swings only up and down in a sort of knot, while the motion in the other parts remains circular – with opposing sense of magnetic rotation.
Copyright HZDR / Juniks
Picture Id 57790
Date 27.03.2019
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