Spin Wave Propagation in Non-uniform Magnetic Fields
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There has been extensive work on spin wave dynamics in ferrite film structures for both fundamental understanding and device applications. However, all previous work has mainly involved spin wave propagation in spatially uniform magnetic fields. This work demonstrates, for the first time, high resolution time and space resolved inductive probe imaging of spin wave propagation in spatially non-uniform magnetic field configurations. Spin wave propagation in spatially non-uniform fields allows for wave packet manipulations that involve changes in both the carrier wave number and the wave packet ...