Figure 2
From: Superconductivity in Strong Spin Orbital Coupling Compound Sb2Se3

Pressure induced transitions in Sb2Se3.
(a) Resistance evolution of Sb2Se3 single crystal as a function of pressure at fixed temperatures (280 K, 200 K, 2 K), in which insulator, metal like and superconductor are denoted. (b) Pressure dependence of superconductive transition temperature TC of Sb2Se3. Solid lines are guides to the eye. Increasing rate of TC decreases upon compression. (c) Pressure induced changes of carrier density at temperature of 2 K, 30 K and 297 K, respectively.