Full Paper

Observation of Magnetic-Switching and Multiferroic-Like Behavior of Co Nanoparticles in a C60 Matrix

  1. Yutaka Sakai1,2,
  2. Eiiti Tamura2,*,
  3. Shuhei Toyokawa1,
  4. Eiji Shikoh1,
  5. Vlado K. Lazarov3,
  6. Atsufumi Hirohata4,5,
  7. Teruya Shinjo1,2,
  8. Yoshishige Suzuki2,
  9. Masashi Shiraishi1,5,*

Article first published online: 1 JUN 2012

DOI: 10.1002/adfm.201200638

Issue

Advanced Functional Materials

Advanced Functional Materials

Volume 22, Issue 18, pages 3845–3852, September 25, 2012

Additional Information

How to Cite

Sakai, Y., Tamura, E., Toyokawa, S., Shikoh, E., Lazarov, V. K., Hirohata, A., Shinjo, T., Suzuki, Y. and Shiraishi, M. (2012), Observation of Magnetic-Switching and Multiferroic-Like Behavior of Co Nanoparticles in a C60 Matrix. Adv. Funct. Mater., 22: 3845–3852. doi: 10.1002/adfm.201200638

Author Information

  1. 1

    Department of Systems Innovation, Graduate School of Engineering Science, Osaka University, 560-8531 Toyonaka, Japan

  2. 2

    Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 560-8531 Toyonaka, Japan

  3. 3

    Department of Physics, University of York, Heslington, York, YO10 5DD, UK

  4. 4

    Department of Electronics, University of York, Heslington, York, YO10 5DD, UK

  5. 5

    PRESTO-JST, 4-1-8 Honcho, Kawaguchi 332-0012, Saitama, Japan

*Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 560-8531 Toyonaka, Japan

Publication History

  1. Issue published online: 18 SEP 2012
  2. Article first published online: 1 JUN 2012
  3. Manuscript Revised: 19 APR 2012
  4. Manuscript Received: 7 MAR 2012

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Keywords:

  • Co nanoparticles;
  • magnetic switching;
  • multiferroic behavior

Abstract

A novel magnetoelectric effect is found to appear in a C60-Co nanocomposite. Although Co is well-known as a ferromagnet, its nanoparticles embedded in a C60 matrix can exhibit multiferroic-like behavior, i.e., an electric field controls magnetic alignment of the nanoparticles and a magnetic field controls their charged states. This novel effect enables a strong magnetic switching effect for which the on/off ratio is ca. 104. Such an effect has been expected to exist and these findings show this magnetoelectric coupling for the first time.

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