Anisotropy Engineering Edge Magnetism in Zigzag Honeycomb Nanoribbons

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英文篇名：Anisotropy Engineering Edge Magnetism in Zigzag Honeycomb Nanoribbons 作者：李宝玥 ; 曹逸锋 ; 徐琳 ; 杨光 ; 马治 ; 叶苗 ; 马天星 英文作者：Baoyue Li;Yifeng Cao;Lin Xu;Guang Yang;Zhi Ma;Miao Ye;Tianxing Ma;School of Physics and Electronic-Electrical Engineering, Ningxia University;Department of Physics, Beijing Normal University;School of Science, Hebei University of Science and Technology;College of Information Science and Engineering, Guilin University of Technology; 中文刊名：WLKB 英文刊名：中国物理快报(英文版) 机构：School of Physics and Electronic-Electrical Engineering, Ningxia University;Department of Physics, Beijing Normal University;School of Science, Hebei University of Science and Technology;College of Information Science and Engineering, Guilin University of Technology; 出版日期：2019-06-03 出版单位：Chinese Physics Letters 年：2019 期：v.36 基金：Supported by the National Natural Science Foundation of China under Grant No 11774033;; the Beijing Natural Science Foundation under Grant No 1192011 语种：英文; 页：WLKB201906020 页数：5 CN：06 ISSN：11-1959/O4 分类号：89-93

摘要

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.
        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.

引文

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