Nature CommunicationsIron deficiency strategy toward single-phase high-entropy M-type ferrites for broadband millimeter-wave absorption with low thicknessChuyang LiuYan FengXueyu XiangYujing ZhangEr LiuYanyan ShaoPan YingDong Hyun KimGuangbin Ji2026-07-28Full textDOI https://doi.org/10.1038/s41467-026-76164-5