Communication

Tunable Magnetism in Carbon-Ion-Implanted Highly Oriented Pyrolytic Graphite†

  1. Huihao Xia1,*,
  2. Weifeng Li2,
  3. You Song3,
  4. Xinmei Yang2,
  5. Xiangdong Liu2,
  6. Mingwen Zhao2,*,
  7. Yueyuan Xia2,
  8. Chen Song2,
  9. Tian-Wei Wang3,
  10. Dezhang Zhu1,
  11. Jinlong Gong1,
  12. Zhiyuan Zhu1

Article first published online: 15 OCT 2008

DOI: 10.1002/adma.200801205

Issue

Advanced Materials

Advanced Materials

Volume 20, Issue 24, pages 4679–4683, December 17, 2008

Additional Information

How to Cite

Xia, H., Li, W., Song, Y., Yang, X., Liu, X., Zhao, M., Xia, Y., Song, C., Wang, T.-W., Zhu, D., Gong, J. and Zhu, Z. (2008), Tunable Magnetism in Carbon-Ion-Implanted Highly Oriented Pyrolytic Graphite. Adv. Mater., 20: 4679–4683. doi: 10.1002/adma.200801205

Author Information

  1. 1

    Key Laboratory of Nuclear Analysis Technique Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 210800 (P. R. China)

  2. 2

    Department of Physics School of Physics Shandong University Jinan, Shandong 250100 (P. R. China)

  3. 3

    State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical Engineering Nanjing University Nanjing 210093 (P. R. China)

*Key Laboratory of Nuclear Analysis Technique Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 210800 (P. R. China).

  1. †

    The work reported here was supported by the Knowledge Innovation Program of the Chinese Academy of Sciences under grant no. KJCX3-SYW-N10 and by the National Natural Science Foundation of China under grant nos. 10705047, 10675075, and 50402017. We thank the National Basic Research Program of China for funding support under grant no. 2005CB623602. Supporting Information is available online from Wiley InterScience or from the authors.

Publication History

  1. Issue published online: 16 DEC 2008
  2. Article first published online: 15 OCT 2008
  3. Manuscript Revised: 6 JUN 2008
  4. Manuscript Received: 1 MAY 2008

Funded by

  • Knowledge Innovation Program of the Chinese Academy of Sciences. Grant Number: KJCX3-SYW-N10
  • National Natural Science Foundation of China. Grant Numbers: 10705047, 10675075, 50402017
  • National Basic Research Program of China. Grant Number: 2005CB623602

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Keywords:

  • graphite;
  • magnetic materials;
  • ferromagnetic materials
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Stable, room-temperature ferromagnetism in carbon— more precisely, highly oriented pyrolytic graphite — with Curie temperature as high as 460 K is reported. The magnetization can be easily tuned by controlling the low-energy carbon ion implantation dose used to create the samples. Theory indicates that the ferromagnetic order likely results from itinerant π-electrons from defects (see figure).

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