Ferromagnetic resonance study of polycrystalline Fe_{1-x}V_x alloy thin films

Details Ferromagnetic resonance study of polycrystalline Fe_{1-x}V_x alloy thin films Ferromagnetic resonance study of polycrystalline Fe_{1-x}V_x alloy thin films

2007-10-15

arxiv.org/abs/0710.2826v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1063/1.2830648

Ferromagnetic resonance has been used to study the magnetic properties and magnetization dynamics of polycrystalline Fe$_{1-x}$V$_{x}$ alloy films with $0\leq x < 0.7$. Films were produced by co-sputtering from separate Fe and V targets, leading to a composition gradient across a Si substrate. FMR studies were conducted at room temperature with a broadband coplanar waveguide at frequencies up to 50 GHz using the flip-chip method. The effective demagnetization field $4 \pi M_{\mathrm{eff}}$ and the Gilbert damping parameter $\alpha$ have been determined as a function of V concentration. The results are compared to those of epitaxial FeV films.

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