Effect of fluctuations in the magnetic moments of microscopic particles on the time evolution of Mossbauer scattering
Popov E. A.
The time evolution of the Mossbauer radiation scattered by Fe57 nuclei, which are part of a superparamagnetic easy-axis particle, is derived. It is shown in the Kubo-Anderson model that the shape of the curves is determined by the average frequency of the magnetic-moment fluctuations of a microparticle.