Line Plot from Scientific Research

Frequency dependences of the decay constant obtained at I = 0 (point-down triangles) and at the maximum current (point-up triangles). Note that negative decay constants correspond to the spatial amplification of the wave. Curves show the results of calculations using Eq. ( 1 ). The data are obtained at H 0 = 1.8 kOe applied at θ = 30°. The largest amplification efficiency is obtained for the slowest spin-waves.

DOI