Nonlinear magnetization waves of an antiferromagnet

Nonlinear magnetization waves are investigated in antiferromagnets with anisotropies of the “easy axis” type in an external magnetic field. Solitary waves are found, and the motion of the domain boundary at a moderate velocity is investigated. Exact solutions are found which describe the interaction of the nonlinear solitary waves. It is shown that N-soliton solutions can be satisfied which satisfy the asymptotic superposition principle.

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