Fig. 2 (IMAGE) Kanazawa University Caption The conversion from M type to P type upon the addition of metal ions. The Cs+ addition caused very slow M→P conversion whereas K+ addition caused quick M→P conversion. Credit Ikbal et al., Sci. Adv. 9, eadj5536 (2023) Usage Restrictions The image may only be used with appropriate caption and credit. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.