Figure 5
From: Structural and magnetic properties of cobalt iron disulfide (CoxFe1−xS2) nanocrystals

Plot of TF and Tirr with x. Plot of furcation temperature in FC-ZFC curves Tirr, broad maximum in ZFC curve TF for Co x Fe1−xS2 as a function of x, where x = 1, 0.875, 0.75, 0.625 and 0.5. The increase in TF and Tirr can be correlated to the increase in dipolar interaction.