Carbon-substitution effect on superconducting properties in MgB2 single crystals

T. Masui; S. Lee; A. Yamamoto; H. Uchiyama; S. Tajima

doi:10.1016/j.physc.2003.11.074

Carbon-substitution effect on superconducting properties in MgB₂ single crystals

T. Masui, S. Lee, A. Yamamoto, H. Uchiyama, S. Tajima

研究成果: Article › 査読

25 被引用数 (Scopus)

抄録

The superconducting properties of carbon-substituted MgB₂ single crystals are studied. We found that C-substitution modifies superconducting properties such as anisotropy and irreversibility field. The highest H _c2 can be achieved by the C-substitution around 3-5% per B-atom. In the superconductivity transition, the resistivity is almost ohmic; this is remarkable contrast to the case of C-free crystals.

本文言語	English
ページ（範囲）	303-306
ページ数	4
ジャーナル	Physica C: Superconductivity and its applications
巻	412-414
号	SPEC. ISS.
DOI	https://doi.org/10.1016/j.physc.2003.11.074
出版ステータス	Published - 2004 10月
外部発表	はい

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学
エネルギー工学および電力技術
電子工学および電気工学

文献へのアクセス

10.1016/j.physc.2003.11.074

他のファイルとリンク

引用スタイル

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abstract = "The superconducting properties of carbon-substituted MgB2 single crystals are studied. We found that C-substitution modifies superconducting properties such as anisotropy and irreversibility field. The highest H c2 can be achieved by the C-substitution around 3-5% per B-atom. In the superconductivity transition, the resistivity is almost ohmic; this is remarkable contrast to the case of C-free crystals.",

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AU - Lee, S.

AU - Yamamoto, A.

AU - Uchiyama, H.

AU - Tajima, S.

N1 - Funding Information: This work is supported by New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity Applications. T.M. and H.U. are supported by the JSPS Research Fellowships for Young Scientists.

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N2 - The superconducting properties of carbon-substituted MgB2 single crystals are studied. We found that C-substitution modifies superconducting properties such as anisotropy and irreversibility field. The highest H c2 can be achieved by the C-substitution around 3-5% per B-atom. In the superconductivity transition, the resistivity is almost ohmic; this is remarkable contrast to the case of C-free crystals.

AB - The superconducting properties of carbon-substituted MgB2 single crystals are studied. We found that C-substitution modifies superconducting properties such as anisotropy and irreversibility field. The highest H c2 can be achieved by the C-substitution around 3-5% per B-atom. In the superconductivity transition, the resistivity is almost ohmic; this is remarkable contrast to the case of C-free crystals.

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KW - Resistivity

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