| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Anisotropy Engineering Edge Magnetism in Zigzag Honeycomb Nanoribbons |
| Baoyue Li1, Yifeng Cao2, Lin Xu2, Guang Yang3,2**, Zhi Ma1, Miao Ye4, Tianxing Ma2 |
1School of Physics and Electronic-Electrical Engineering, Ningxia University, Yinchuan 750021
2Department of Physics, Beijing Normal University, Beijing 100875
3School of Science, Hebei University of Science and Technology, Shijiazhuang 050018
4College of Information Science and Engineering, Guilin University of Technology, Guilin 541004
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| Cite this article: |
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Baoyue Li, Yifeng Cao, Lin Xu et al 2019 Chin. Phys. Lett. 36 067503 |
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Abstract It has been demonstrated that the zigzag honeycomb nanoribbons exhibit an intriguing edge magnetism. Here the effect of the anisotropy on the edge magnetism in zigzag honeycomb nanoribbons is investigated using two kinds of large-scale quantum Monte Carlo simulations. The anisotropy in zigzag honeycomb nanoribbons is characterized by the ratios of nearest-neighbor hopping integrals $t_{1}$ in one direction and $t_{2}$ in another direction. Considering the electron-electron correlation, it is shown that the edge ferromagnetism could be enhanced greatly as $t_{2}/|t_{1}|$ increases from 1 to 3, which not only presents an avenue for the control of this magnetism but is also useful for exploring further novel magnetism in new nano-scale materials.
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Received: 20 February 2019
Published: 18 May 2019
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| PACS: |
75.75.-c
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(Magnetic properties of nanostructures)
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75.50.Pp
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(Magnetic semiconductors)
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| Fund: Supported by the National Natural Science Foundation of China under Grant No 11774033, and the Beijing Natural Science Foundation under Grant No 1192011. |
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