Han, X., Li, Y., Crespillo, M. L., Zarkadoula, E., Liu, Y., Mu, W., Zhao, S., Liu, P. (2026). Electronic Excitation‐Driven β‐Ga 2 O 3 Metastability Transformation and Self‐Organization Mechanism: β→κ/γ/δ Phases. Advanced Materials. https://doi.org/10.1002/adma.202519259