Dark solitons in ferromagnetic chains with first- and second-neighbor interactions
arXiv:1111.5477 · doi:10.2478/s11534-012-0118-8
Abstract
We study the ferromagnetic spin chain with both first- and second-neighbor interactions. We obtained the condition for the appearance and stability of bright and dark solitons for arbitrary wave number inside the Brillouin zone. The influence of the second-neighbor interaction and the anisotropy on the soliton properties is considered. The scattering of dark solitons from point defects in the discrete spin chain is investigated numerically.
7 pages,5 figures