Pairing of Solitons in Two-DimensionalS=1Magnets

B. A. Ivanov, R. S. Khymyn, A. K. Kolezhuk
2008 Physical Review Letters  
We discuss the structure of topological solitons in a general non-Heisenberg model of isotropic two-dimensional magnet with spin S=1, in the vicinity of a special point where the model symmetry is enhanced to SU(3). It is shown that upon perturbing the SU(3) symmetry, solitons with odd topological charge become unstable and bind into pairs.
doi:10.1103/physrevlett.100.047203 pmid:18352325 fatcat:tricqxkkgvfgvlg7dfyut67qca