Stangl, A., Schmid, A., Riaz, A., Fleig, J., Badel, A. (2026). Bias‐Triggered Conductivity Relaxation (BCR): A Unique Tool to Simultaneously Investigate Thermodynamics, Kinetics, and Electrostatic Effects of Oxygen Reactions in MIEC Thin Films. Advanced Materials. https://doi.org/10.1002/adma.73869