Giant oscillations of the parallel-pumping threshold in magnetic materials with a biharmonic field modulation
Ozhogin V. I., Yakubovskii A. Yu., Suleimanov S. M.
The change in the temporal phase of a paramagnetic magnon pair is determined by the same nonlinear equation as the change in the phase difference between the wave functions of paired superconducting electrons at a Josephson junction. Experiments with an rf modulation of the magnetic field during parallel microwave pumping of nucleus-like magnons in the antiferromagnet CsMnF3 reveal anomalies in the behavior of the pumping threshold, as expected on the basis of this mathematical analogy.