Figure 6
From: Excitation of coherent second sound waves in a dense magnon gas
Phase velocity VK of the magnonic second sound as a function of the bias magnetic field B0: Symbols – experimental values taken at Pp = 10.0 W and fmw = 9.0 GHz, line – theoretical result calculated for q = 1 (see Fig. S1) from Eqs (4), (5) assuming that Δωth/2π = 490MHz (see Supplemetary Materials for details).
