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2018 Volume 27 Issue 12
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Jian Zhang, Ya Deng, Ting-Ting Hao, Xiao Hu, Ya-Yun Liu, Zhi-Sheng Peng, Jean Pierre Nshimiyimana, Xian-Nian Chi, Pei Wu, Si-Yu Liu, Zhong Zhang, Jun-Jie Li, Gong-Tang Wang, Wei-Guo Chu, Chang-Zhi Gu, Lian-Feng Sun. 2018: Large magnetic moment at sheared ends of single-walled carbon nanotubes, Chinese Physics B, 27(12): 583-590. doi: 10.1088/1674-1056/27/12/128101
Citation: Jian Zhang, Ya Deng, Ting-Ting Hao, Xiao Hu, Ya-Yun Liu, Zhi-Sheng Peng, Jean Pierre Nshimiyimana, Xian-Nian Chi, Pei Wu, Si-Yu Liu, Zhong Zhang, Jun-Jie Li, Gong-Tang Wang, Wei-Guo Chu, Chang-Zhi Gu, Lian-Feng Sun. 2018: Large magnetic moment at sheared ends of single-walled carbon nanotubes, Chinese Physics B, 27(12): 583-590. doi: 10.1088/1674-1056/27/12/128101
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Large magnetic moment at sheared ends of single-walled carbon nanotubes

  • CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China;University of Chinese Academy of Sciences, Beijing 100190, China

  • Institute of Physics, Chinese Academy of Sciences (CAS), Beijing 100190, China

  • School of Physics and Electronics, Shandong Normal University, Jinan 250014, China

  • CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China

  • Available Online: 01/01/2018
  • Fund Project: the National Key Research and Development Program of China(Grant . 2018YFA0208403 and 2016YFA0200403)%the National Natural Science Foundation of China(Grant . 51472057, 11874129, 91323304, and 11674387)%the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant XDA09040101)%the Baotou Rare Earth Research and Development Centre, Chinese Academy of Sciences(Grant GZR 2018001)
  • In this work we report that after single-walled carbon nanotubes (SWNTs) are sheared with a pair of titanium scissors, the magnetization becomes larger than that of the corresponding pristine ones. The magnetization increases proportionally with the number of SWNTs with sheared ends, suggesting that there exist magnetic moments at the sheared ends of SWNTs. By using the coefficient of this linear relation, the average magnetic moment is estimated to be 41.5 ± 9.8 μB (Bohr magneton) per carbon atom in the edge state at temperature of 300.0 K, suggesting that ultrahigh magnetic fields can be produced. The dangling sigma and pi bonds of the carbon atoms at sheared ends play important roles in determining the unexpectedly high magnetic moments, which may have great potential applications.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Large magnetic moment at sheared ends of single-walled carbon nanotubes

  • Available Online: 01/01/2018

Abstract: In this work we report that after single-walled carbon nanotubes (SWNTs) are sheared with a pair of titanium scissors, the magnetization becomes larger than that of the corresponding pristine ones. The magnetization increases proportionally with the number of SWNTs with sheared ends, suggesting that there exist magnetic moments at the sheared ends of SWNTs. By using the coefficient of this linear relation, the average magnetic moment is estimated to be 41.5 ± 9.8 μB (Bohr magneton) per carbon atom in the edge state at temperature of 300.0 K, suggesting that ultrahigh magnetic fields can be produced. The dangling sigma and pi bonds of the carbon atoms at sheared ends play important roles in determining the unexpectedly high magnetic moments, which may have great potential applications.

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