Metal-insulator transition sustained by Cr-doping in V 2O 3 nanocrystals

Yoichi Ishiwata, Tatsuya Shiraishi, Naoki Ito, Satoshi Suehiro, Tetsuya Kida, Hirofumi Ishii, Yasuhisa Tezuka, Yuji Inagaki, Tatsuya Kawae, Hirotaka Oosato, Eiichiro Watanabe, Daiju Tsuya, Masashi Nantoh, Koji Ishibashi

研究成果: ジャーナルへの寄稿記事

4 引用 (Scopus)

抄録

We have obtained monodisperse (V 1-xCr x) 2O 3 nanocrystals with crystal sizes of 21.0 ± 4.1 nm using organic-phase synthesis. The (V 1- xCr x) 2O 3 nanocrystals clearly show the transition from a corundum structured paramagnetic metal to a monoclinic structured antiferromagnetic insulator in contrast to non-doped V 2O 3 nanocrystals, in which the disappearance of the metal-insulator transition has been observed. We have found that Cr doping works effectively in narrowing the a 1g band, which tends to be broadened by nanocrystallization. This result suggests that chemical doping is useful for control of material phase transitions at the nanoscale.

元の言語英語
記事番号043103
ジャーナルApplied Physics Letters
100
発行部数4
DOI
出版物ステータス出版済み - 1 23 2012

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nanocrystals
insulators
metals
aluminum oxides
synthesis
crystals

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

これを引用

Ishiwata, Y., Shiraishi, T., Ito, N., Suehiro, S., Kida, T., Ishii, H., ... Ishibashi, K. (2012). Metal-insulator transition sustained by Cr-doping in V 2O 3 nanocrystals. Applied Physics Letters, 100(4), [043103]. https://doi.org/10.1063/1.3679396

Metal-insulator transition sustained by Cr-doping in V 2O 3 nanocrystals. / Ishiwata, Yoichi; Shiraishi, Tatsuya; Ito, Naoki; Suehiro, Satoshi; Kida, Tetsuya; Ishii, Hirofumi; Tezuka, Yasuhisa; Inagaki, Yuji; Kawae, Tatsuya; Oosato, Hirotaka; Watanabe, Eiichiro; Tsuya, Daiju; Nantoh, Masashi; Ishibashi, Koji.

:: Applied Physics Letters, 巻 100, 番号 4, 043103, 23.01.2012.

研究成果: ジャーナルへの寄稿記事

Ishiwata, Y, Shiraishi, T, Ito, N, Suehiro, S, Kida, T, Ishii, H, Tezuka, Y, Inagaki, Y, Kawae, T, Oosato, H, Watanabe, E, Tsuya, D, Nantoh, M & Ishibashi, K 2012, 'Metal-insulator transition sustained by Cr-doping in V 2O 3 nanocrystals', Applied Physics Letters, 巻. 100, 番号 4, 043103. https://doi.org/10.1063/1.3679396
Ishiwata Y, Shiraishi T, Ito N, Suehiro S, Kida T, Ishii H その他. Metal-insulator transition sustained by Cr-doping in V 2O 3 nanocrystals. Applied Physics Letters. 2012 1 23;100(4). 043103. https://doi.org/10.1063/1.3679396
Ishiwata, Yoichi ; Shiraishi, Tatsuya ; Ito, Naoki ; Suehiro, Satoshi ; Kida, Tetsuya ; Ishii, Hirofumi ; Tezuka, Yasuhisa ; Inagaki, Yuji ; Kawae, Tatsuya ; Oosato, Hirotaka ; Watanabe, Eiichiro ; Tsuya, Daiju ; Nantoh, Masashi ; Ishibashi, Koji. / Metal-insulator transition sustained by Cr-doping in V 2O 3 nanocrystals. :: Applied Physics Letters. 2012 ; 巻 100, 番号 4.
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AU - Kida, Tetsuya

AU - Ishii, Hirofumi

AU - Tezuka, Yasuhisa

AU - Inagaki, Yuji

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AU - Watanabe, Eiichiro

AU - Tsuya, Daiju

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