| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-02-28 |
| タイトル |
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タイトル |
Competitive coexistence of ferromagnetism and metal?insulator transition of VO2 nanoparticles |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Tsuyoshi Hatano
Akihiro Fukawa
Hiroki Yamamoto
Keiichirou Akiba
Satoshi Demura
Kouichi Takase
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
We investigated the magnetic and electric properties of nanometer-sized vanadium dioxide (VO2) particles. VO2 nanoparticles were formed by milling VO2 powder. We measured the magnetic field dependence of the magnetization of the VO2 powder and nanoparticles. The VO2 powder did not exhibit ferromagnetism, whereas the VO2 nanoparticles exhibited ferromagnetism. In addition, we fabricated samples which were fabricated by bridging between electrodes with the VO2 nanoparticles, and the temperature dependence of their resistance was measured. Metal-insulator transitions (MITs) were observed, and the temperature range where the MIT occurred was wider than that in a typical bulk VO2. The VO2 nanoparticles exhibited these properties of ferromagnetism and MIT possibly because of the surface and size effects of the VO2 nanoparticles. These results indicate the first observation of the competitive coexistence of ferromagnetism and MIT of VO2 nanoparticles at room temperature. |
| 書誌情報 |
Japanese Journal of Applied Physics
発行日 2024-02
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| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.35848/1347-4065/ad2d04 |
