Figure 3: Field-temperature phase diagram of superconductivity in Sr3−xSnO.
From: Superconductivity in the antiperovskite Dirac-metal oxide Sr3−xSnO
The upper critical field Hc2 is extracted from 10% and 50% resistivities for a batch-C sample. The curves are results of fitting with the Wertheimer–Helfand–Hohenberg relation17.
