Figure 4
The logarithm of the transmissivity modulus (a,d), group delay (b,e), and FOM (c,f) in the tunnelling regime, Ωm < Ω < Ωb. All parameters are presented as a function of spin wave frequency Ω and material parameters: the strength of the interface exchange coupling \({\tilde{A}}_{{\rm{mb}}}\) (a–c) and the magnetization contrast between the barrier and matrix, \({\tilde{M}}_{{\rm{S}},{\rm{b}}}\)/\({\tilde{M}}_{{\rm{S}},{\rm{m}}}\) (d–f). The calculations have been done for the same values of the exchange length λex = 1 in the barrier and in the matrix. The parameters of the barrier are the same as the ones used in Fig. 2.
