Song, Y., Fan, J., Guo, F., Wang, L., Hu, Y., Cheng, Z., Gao, Z., Hu, Z. (2026). High‐Entropy Lead‐Free Relaxor Ferroelectric Ceramic with Wide‐Temperature‐Range Self‐Powered X‐Ray Detection. Advanced Materials. https://doi.org/10.1002/adma.73525