text: don) 6, 13 (2007).  (1987). 
  7 Minhyea Lee, W. Kang, Y. Onose, Y. Tokura, and N. P. 
  
  21 D. P. Landau, and K. Binder, A Guide to Monte Carlo 
  Simulation in Statistical Physics, Cambridge University 
  Press, Cambridge (2000). 
  Ong, Phys. Rev. Lett. 102, 186601 (2009) 
  
  8 P. Pedrazzini et al., Phys. Rev. Lett. 98, 047204 (2007). 
  9 H. Kawamura and M. S. Li, Phys. Rev. Lett. 87, 187204 
  22 M. E.J. Newman, and G. T. Barkema, Monte Carlo Meth- 
  ods in Statistical Physics, Clarendon Press, Oxford (1999).  (2001). 
  
  10 P. J. Jensen, and A. R. Mackintosh, Rere Earth Mag- 
  netism (Structure and Excitations), Clarendon Press, Ox- 
  ford (1991). 
  11 S. Konings, C. Schuessler-Langeheine, H. Ott, E. Weschke, 