This phase, however, currently occurs at very low temperatures -- even so-called high-temperature superconductors, used in devices like MRI machines, must be kept nearly 100 °F below zero.

Phase equilibrium diagrams are essentially maps of composition, temperature, and, in some cases, pressure space that define regimes for thermodynamic stability for one or more condensed phases. Phase ...

This supports the the finite-temperature phase diagram being of the type shown in Fig. 1 b1—namely, that as the temperature increases the ST phase will first turn into the MG phase before ...