Abstract
It is of current interest to study the spin-related properties of ultrathin magnetic films. We are proposing to extend previous studies of superradiative decay of various elementary excitations in confined geometries to the decay of magnetic excitations in thin films into elastic waves (phonons) of surrounding nonmagnetic medium on one side or both sides. This decay rate is shown to be much greater than that caused by magnon-photon coupling. The superradiative enhancement is caused by the coherence between the magnetization wave (magnon) and the elastic wave (phonon) in the film. An external applied magnetic field may serve as an experimental knob to tune the magnon energy and hence control the decay rate.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
