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Spin waves (SWs) are promising information carriers which can be used in modern magnonic devices, characterized by higher performance and lower energy consumption than presently used electronic circuits. However, before practical application of SWs, the efficient control over SW amplitude and phase needs to be developed. We analytically analyze reflection and refraction of the SWs at the interface...
Collimation of monochromatic beams of spin waves results from refraction at the interface between two magnetic half-planes. Collimation occurs for a broad range of the angles of incidence for homogenous Co and Permalloy (Py) half-planes due to the intrinsic anisotropy of spin-wave propagation in these materials. The effect arises in samples saturated by an in-plane magnetic field tangential to the...
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