Venuti, L. Campos; Boschi, C. Degli Esposti; Ercolessi, E. - In: The European Physical Journal B - Condensed Matter and … 53 (2006) 1, pp. 11-18
Motivated by field-theoretic predictions we investigate the stable excitations that exist in two characteristic gapped phases of a spin-1 model with Ising-like and single-ion anisotropies. The sine-Gordon theory indicates a region close to the phase boundary where a stable breather exists...