Gao Chenyang, Xia Baorui, Gao Daqiang, Liu Yonggang
College of Science, Gansu Agricultural University Lanzhou China 730070
Key Laboratory for Magnetism and Magnetic Materials of MO, Key Laboratory of Special Function Materials and Structure Design of MOE, Lanzhou University Lanzhou 730000 P. R. China
RSC Adv. 2019 Jul 10;9(37):21391-21395. doi: 10.1039/c9ra01795j. eCollection 2019 Jul 5.
With the assistance of innovative approaches driven by nanotechnology, engineering 2D materials into designed architectures or desired structures could tailor the electronic structure into an appropriate energy band structure, tuning the properties of the materials to be a predictable manner. Here we systematically studied the role that the structural distortion plays in the magnetism by taking two-dimensional metal-free graphitic-CN as an example. Through the controllable structural distortion engineering introduced by post-heat-treatment in the experiment, the ferromagnetism is observed in graphitic-CN nanosheets, which benefits from the electronic structural deformation, showing intriguing structural distortion-dependent ferromagnetism. This study not only offers new insight into the in-depth understanding of the structural distortion effect on the magnetism, but also provides a new way for searching and designing new magnetic materials.
在纳米技术驱动的创新方法的辅助下，将二维材料工程化为设计架构或所需结构，可以将电子结构调整为合适的能带结构，以可预测的方式调节材料的性能。在此，我们以二维无金属石墨-CN为例，系统地研究了结构畸变在磁性中所起的作用。通过实验中后热处理引入的可控结构畸变工程，在石墨-CN纳米片中观察到了铁磁性，这得益于电子结构变形，呈现出有趣的与结构畸变相关的铁磁性。这项研究不仅为深入理解结构畸变对磁性的影响提供了新的见解，也为寻找和设计新型磁性材料提供了一条新途径。
