Figure 3
From: Preparation and characterization of a new graphite superconductor: Ca0.5Sr0.5C6
R – T plots for Ca0.5(2)Sr0.5(2)C6 at different pressures in T range of (a) 2–300 K and (b) 2–9 K. (c) T c – p and (d) R – p plots for Ca0.5(2)Sr0.5(2)C6; R in (d) means the R value at 280 K. Inset of (c): T c – p plot for the Ca0.9Sr0.1Cy sample below 1.5 GPa, which was determined from M/H – T plots at different pressures; this sample’s stoichiometry is shown in the text.
