Effective field theory and the scattering process for magnons in the ferromagnet, antiferromagnet, and ferrimagnet

Shinya Gongyo, Yuta Kikuchi, Tetsuo Hyodo +1

We discuss that a low-energy effective Lagrangian relying on SO(3) $\to$ SO(2) is applicable for a ferrimagnet as well as a ferromagnet and an antiferromagnet. The analysis…