Rosner, H. Helge Rosner, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;
Richter, J., Darradi, R., Schulenburg, J., Farnell, D. J. J., & Rosner, H. (2010). Frustrated spin-1/2 J1-J2 Heisenberg ferromagnet on the square lattice studied via exact diagonalization and coupled-cluster method. Physical Review B, 81(17): 174429, pp. 174429-1-174429-7. doi:10.1103/PhysRevB.81.174429.