Short-wavelength spin-wave generation by a microstrip line

Abstract

We investigate the use of microstrip lines for short-wavelength spin-wave generation in magnetic thin films. We use micromagnetic and electromagnetic simulations to estimate the generated wave amplitudes for different geometries and at different frequencies. Our results suggest that in applications where coherent wavefronts need to be generated a microstrip line might also be used instead of more complicated devices (e.g. spin-torque oscillators) with comparable efficiency.