Chaotic spin-wave solitons in magnetic film feedback rings

Phys Rev Lett. 2011 Sep 9;107(11):114102. doi: 10.1103/PhysRevLett.107.114102. Epub 2011 Sep 7.

Abstract

Chaotic spin-wave solitons in magnetic film active feedback rings were observed for the first time. At some ring gain level, one observes the self-generation of a single spin-wave soliton pulse in the ring. When the pulse circulates in the ring, its amplitude varies chaotically with time. Numerical simulations based on a gain-loss nonlinear Schrödinger equation reproduce the observed responses.