Figure 1
From: Effect of heat treatments on superconducting properties and connectivity in K-doped BaFe2As2
Specific heat characterization at 0 and 16 T for six K-Ba122 samples after different heat treatments. (a–d) the temperature dependence for the samples synthetized by varying the 1st heat treatment temperature between 600 and 825 °C and the 2nd at 600 °C. (e,f) similar data for the samples heat treated at 750 °C with the 2nd heat treatment varied between 600 and 750 °C. In the insets, the low temperature magnification of the C versus T and/or C/T versus T2 curves.
