Zhou Lu, Hu Pengfei, Bai Ming, Leng Ning, Cai Bo, Peng Hua-Long, Zhao Pei-Yan, Guo Yongqiang, He Mukun, Wang Guang-Sheng, Gu Junwei
Center for Bioinspired Science and Technology, Hangzhou International Innovation Institute, Beihang University, Hangzhou, 311115, P. R. China.
School of Chemistry, Beihang University, Beijing, 100191, P. R. China.
Adv Mater. 2025 Feb;37(7):e2418321. doi: 10.1002/adma.202418321. Epub 2024 Dec 27.
By manipulating their asymmetric electronic spin states, the unique electronic structures and unsaturated coordination environments of single atoms can be effectively harnessed to control their magnetic properties. In this research, the first investigation is presented into the regulation of magnetic properties through the electronic spin states of single atoms. Magnetic single-atom one-dimensional materials, M-N-C/ZrO (M = Fe, Co, Ni), with varying electronic spin states, are design and synthesize based on the electronic orbital structure model. The SAs 3d electron spin structure of the composite M-N-C modulates the magneto physical properties and triggers a unique natural resonance loss, which achieves a controllable tuning of the effective absorption band under low-frequency conditions. The minimum reflection loss (RL) of M-N-C can reach -69.71 dB, and the effective absorption bandwidth (EAB) ratio is as high as 91% (2-18 GHz). The current work provides a path toward achieving controllable modulation of low-frequency electromagnetic wave bands by exploring the mechanism through which atomic and even electronic level interactions influence magnetic modulation.
通过操纵单原子的不对称电子自旋态，可以有效利用其独特的电子结构和不饱和配位环境来控制其磁性。在本研究中，首次对通过单原子的电子自旋态调节磁性进行了研究。基于电子轨道结构模型，设计并合成了具有不同电子自旋态的磁性单原子一维材料M-N-C/ZrO（M = Fe、Co、Ni）。复合M-N-C的单原子3d电子自旋结构调节磁物理性质并引发独特的自然共振损耗，从而在低频条件下实现有效吸收带的可控调谐。M-N-C的最小反射损耗（RL）可达-69.71 dB，有效吸收带宽（EAB）比率高达91%（2-18 GHz）。当前的工作通过探索原子乃至电子层面的相互作用影响磁调制的机制，为实现低频电磁波波段的可控调制提供了一条途径。
