Fig. 3. Map of predicted double perovskite oxides and halides.

Lower triangle: Probability of forming a stable perovskite with the formula Cs₂BB′Cl₆ as predicted by τ. Upper triangle: Probability of forming a stable perovskite with the formula La₂BB′O₆ as predicted by τ. White spaces indicate B/B′ combinations that do not result in charge-balanced compounds with r_A > r_B. The colors indicate the Platt-scaled classification probabilities, P(τ), with higher P(τ) indicating a higher probability of forming a stable perovskite. B/B′ sites are restricted to ions that are labeled as B sites in the experimental set of 576 ABX₃ compounds.