A tenet of special relativity is that no particle can exceed the speed of light. In certain
magnetic materials, the maximum magnon group velocity serves as an analogous relativistic …

Since the book was first published in 1991, the field of surface nonlinear optics has grown
substantially to the point where an exposition of the principles of this field will prove useful to …

The present status of theoretical and experimental investigations of solitary excitations in
one-dimensional magnetic systems is reviewed. A survey of exact solutions to the nonlinear …

Reviewed here is the nonlinear intrinsic localization expected for large amplitude spin
waves in a variety of magnetically ordered lattices. Both static and dynamic properties of …

A systematic method is presented to provide various equivalent solution formulas for exact
solutions to the sine-Gordon equation. Such solutions are analytic in the spatial variable x …

Kinks are domain walls connecting symmetric equilibria and emerge in several branches of
science. Here, we report topological kinks connecting Faraday-type waves in a magnetic …

In the recent literature, there have been discussions of nonlinear spin excitations in one-
dimensional, anisotropic Heisenberg spin chains. These have the character of localized …

We review recent theoretical results on nonlinear excitations in one‐dimensional magnets.
We deal with classical magnetic chains in a continuum description and discuss solutions to …

The authors present a detailed quantitative experimental analysis of the soliton regime in a
magnetic chain compound. The experiments described were performed on the one …

The classical spin dynamics of an anisotropic Heisenberg ferromagnetic chain in an applied
magnetic field is approximately mapped onto the double-sine-Gordon model. Depending on …