Theoretical study of the stripline ferromagnetic resonance response of metallic ferromagnetic films based on an analytical model

摘要

We develop an advanced analytical model for calculating the broadbandstripline ferromagnetic resonance (FMR) response for metallic ferromagneticfilms, taking into account the exchange interaction as well as the exchangeboundary conditions at the film surface. This approach leads to simpleanalytical expressions in the Fourier space. As a result, a numerical codewhich implements inverse Fourier transform of these equations is very quick.This allows us to explore a wide space of parameters as numerical examples ofapplication of this theory. In particular, we investigate the joint effect ofmicrowave eddy current shielding and magnetisation pinning at the ferromagneticfilm surfaces on the shape of the stripline FMR response of the film.