Extended Data Fig. 5: Optimized ozone annealing profiles for sample P75.
From: Superconductivity and normal-state transport in compressively strained La2PrNi2O7 thin films
a-c, Time-dependent profiles of ρ, w(O3), and Tanneal during optimized ozone annealing. The inset of a shows the saturation of ρ upon oxygenation completion. Blue vertical dashed lines mark changes in w(O3), while red vertical dashed lines indicate the start of warming, reaching Tanneal, and the completion of annealing, respectively. The complex evolution of ρ with time can be understood by changes in the oxidation environment during the annealing process. This is due to both the time required for the gas environment inside the quartz tube to respond after manually adjusting w(O3), and the temperature change.
