text: Although the layer subtraction does not seem to mod- 
  ify TC (n), the onset of helical arrangement is observed to 
  shift at lower temperatures as n decreases. The chirality 
  κ deﬁned in Eq. (4) is reported in Fig 4b for n = 8. As the 
  temperature decreases, around T ∼ 80 K we can identify 
  a ﬁnite-size behaviour of κ which, at variance with the 
  previous one, can be easily recognized as typical of an 
  eﬀective phase transition. Such conclusion is conﬁrmed 
  by the analysis of the chiral susceptibility χκ (Fig. 4c), 
  which for the largest L has a maximum at T = 85 K. As- 
  suming that the order parameter (4) is the relevant one 
  to single out the onset of the fan arrangement, we can 
  get a more accurate estimate of TN (8) by looking at the 
  Binder cumulant u4(κ), reported in Fig. 4d. By making 
  use of the MH technique, we locate the crossing point at 
  TN (8) = 92(2) K. Finally, it is worthwhile to observe as 
  the speciﬁc heat does not show any anomaly at TN (8), 
  being the entropy substantially removed at TC (8). 