@article{Han2023, 
author = {Yixuan Han and Mukun He and Jinwen Hu and Panbo Liu and Zhongwu Liu and Zhonglei Ma and Wenbo Ju and Junwei Gu},
title = {Hierarchical design of FeCo-based microchains for enhanced microwave absorption in C band},
year = {2023},
journal = {Nano Research},
volume = {16},
number = {1},
pages = {1773-1778},
keywords = {hierarchical structure, one-dimensional micromagnets, microwave absorbing material, magnetic coupling, double-loss mechanisms},
url = {https://www.sciopen.com/article/10.1007/s12274-022-5111-y},
doi = {10.1007/s12274-022-5111-y},
abstract = {Microwave absorbing materials (MAMs) has been intensively investigated in order to meet the requirement of electromagnetic radiation control, especially in S and C band. In this work, FeCo-based magnetic MAMs are hydrothermally synthesized via a magnetic-field-induced process. The composition and morphology of the MAMs are capable of being adjusted simultaneously by the atomic ratio of Fe2+ to Co2+ in the precursor. The hierarchical magnetic microchain, which has a core–shell structure of two-dimensional FexCo1−xOOH nanosheets anchored vertically on the surface of a one-dimensional (1D) Co microchain, shows significantly enhanced microwave absorption in C band, resulting in a reflection loss (RL) of lower than −20 dB at frequencies ranging from 4.4 to 8.0 GHz under a suitable matching thickness. The magnetic coupling of Co microcrystals and the double-loss mechanisms out of the core-shell structure are considered to promote the microwave attenuation capability. The hierarchical design of 1D magnetic MAMs provides a feasible strategy to solve the electromagnetic pollution in C band.}
}