Excellent microwave absorption of porous rod spinel by exceeding the Snoek limit via fibrosis and grain refinements

The pure spinel ferrite still cannot exhibit unsatisfactory electromagnetic wave (EMW) absorption performance. In this study, the single‒phase, Co, Ni, and Zn co-doped, porous, defective, nano‒microcrystalline self‒assembled 1D rod‒shaped spinel...