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Observation of Magnetic‐Switching and Multiferroic‐Like Behavior of Co Nanoparticles in a C60 Matrix |
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| Authors: | Yutaka Sakai Eiiti Tamura Shuhei Toyokawa Eiji Shikoh Vlado K. Lazarov Atsufumi Hirohata Teruya Shinjo Yoshishige Suzuki Masashi Shiraishi |
| Affiliation: | 1. Department of Systems Innovation, Graduate School of Engineering Science, Osaka University, 560‐8531 Toyonaka, Japan;2. Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 560‐8531 Toyonaka, Japan;3. Department of Physics, University of York, Heslington, York, YO10 5DD, UK;4. Department of Electronics, University of York, Heslington, York, YO10 5DD, UK;5. PRESTO‐JST, 4‐1‐8 Honcho, Kawaguchi 332‐0012, Saitama, Japan |
| 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. |
| Keywords: | Co nanoparticles magnetic switching multiferroic behavior |