Figure 4
From: Finite-temperature scaling of trace distance discord near criticality in spin diamond structure
The calculated 
(a) and its first-derivative 
(b) as a function of parameter Δ around the critical point Δ = 1.0. (c) The peak position Δm can be regarded as a pseudo-critical point which shifts with increasing temperature T following relationship 
in approaching to the critical point Δc. This behavior implies that Δm → Δc as T → 0. (d) The maximum value of 
at the pseudocritical point Δm as a function of T.
