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The magnetism enhancement and spin transport in zigzag borophene nanoribbons edge-passivated by N atoms

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Abstract

We study the effects of edge passivation by N atoms on the magnetic and electrical properties of zigzag borophene nanoribbons (ZBNRs) employing the density functional theory combined with the non-equilibrium Green’s function method. Significant enhancement on the edge magnetism is found in general, in contrast to the magnetism suppression in hydrogenated ZBNRs, and half-metallicity can be observed in some special cases. Different from the graphene nanoribbons, the properties of ZBNRs are sensitive to the ribbon width, since their electronic structures fluctuate greatly with the width. Magnetism and conductivity change sharply and the ground state jumps back and forth between the ferromagnetic and antiferromagnetic configurations as the ribbon width increases. Spin-dependent negative differential resistivity may be realized in N-passivated ZBNRs.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant Nos. 61674110, 6167204, and 11274238).

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Authors and Affiliations

  1. Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, 1 Shizi Street, Suzhou, 215006, China

    Chen Sun, Xue-Feng Wang & Li-Ping Zhou

  2. Key Laboratory of Terahertz Solid-State Technology, Chinese Academy of Sciences, 865 Changning Road, Shanghai, 200050, China

    Xue-Feng Wang

  3. College of Physics and Engineering, Changshu Institute of Technology, Changshu, 215500, China

    Yu-Shen Liu

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  1. Chen Sun
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  2. Xue-Feng Wang
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  3. Li-Ping Zhou
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  4. Yu-Shen Liu
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Correspondence to Xue-Feng Wang.

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Sun, C., Wang, XF., Zhou, LP. et al. The magnetism enhancement and spin transport in zigzag borophene nanoribbons edge-passivated by N atoms. Appl Nanosci 10, 29–35 (2020). https://doi.org/10.1007/s13204-019-01092-4

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