DWs in chain magnets

Static and dynamic properties of single-chain magnets with sharp and broad domain walls.
Orlando V. Billoni, Vivien Pianet, Danilo Pescia, and Alessandro Vindigni
Phys. Rev. B 84, 064415 (2011)

Domain-wall energy (in J units) as a function of the ratio D/J: discrete-lattice calculation (solid line), continuum-limit solution (dashed line). Crosses and circles correspond to the ratios used in transfer matrix and time-quantified Monte Carlo calculations, respectively.