Zhao, J., Liao, M., Zhang, J., Wang, Y., Wu, C., Jiang, H., Zhou, F., Guan, J., Yang, D., Qu, N., Wang, F. (2025). HM-C21: A three-dimensional carbon with abundant p-electron-induced magnetic states for spintronics. Applied Physics Letters. https://doi.org/10.1063/5.0247503