Single crystal growth and superconductivity in La1.87Ca1.13Cu2O6

Takao Ishii; Takao Watanabe; Kyoichi Kinoshita; Azusa Matsuda

doi:10.1016/0921-4534(91)90008-M

Single crystal growth and superconductivity in La_1.87Ca_1.13Cu₂O₆

Takao Ishii^*, Takao Watanabe, Kyoichi Kinoshita, Azusa Matsuda

^*この研究の対応する著者

研究成果: Article › 査読

15 被引用数 (Scopus)

抄録

Single crystals of La_1.87Ca_1.13Cu₂O₆ have been successfully grown using CuO flux. Although the electrical resistivity of the as-grown crystals is semiconducting, superconductivity appears by high oxygen pressure (∼ 300 atm) annealing. The transition temperature is between 50 K (onset) and 40 K (end point). The full magnetic shielding effect is observed under zero field cooling and the Meissner volume fraction is about 3% of that expected for an ideal diamagnet. Electrical and magnetic measurements confirm that the crystals have bulk nature of superconductivity. The anisotropies of the electrical resistivity and the coherence length are small in comparison with other copper oxide superconductors.

本文言語	English
ページ（範囲）	39-42
ページ数	4
ジャーナル	Physica C: Superconductivity and its applications
巻	179
号	1-3
DOI	https://doi.org/10.1016/0921-4534(91)90008-M
出版ステータス	Published - 1991 8月 15
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

10.1016/0921-4534(91)90008-M

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引用スタイル

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