Observation of intrinsic spin-wave relaxation processes in a ferromagnetic material at 4.2 K
Anisimov A. N., Gurevich A. G., Merkulov A. I., Shukyurov A. S., Emiryan L. M.
The dependence of the parameter of the spin-wave relaxation in CdCr2Se4 on the wave number at 4.2 К has been measured. The three-magnon dipole coalescence process accounts for the main contribution to this dependence for the <100> direction (in which the influence of fast-relaxing ions is small).