Terakawa, S., Liu, B., Schindler, F., Neupert, T., Ji, J., Domaine, G., McFarlane, E. C., Geng, D., Yang, J., Choueikani, F., Ohresser, P., Valvidares, M., Gargiani, P., Polley, C., Carbone, G., Leandersson, M., Parkin, S. S. P., Bedoya‐Pinto, A., Schröter, N. B. M. (2026). Proximity Induced Magnetic Anisotropy and Trefoil Fermiology in Monolayer FeCl 2 /Bi(111). Advanced Materials. https://doi.org/10.1002/adma.202521534