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

Takao Ishii, Takao Watanabe, Kyoichi Kinoshita, Azusa Matsuda

研究成果: Article査読

15 被引用数 (Scopus)

抄録

Single crystals of La1.87Ca1.13Cu2O6 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
179
1-3
DOI
出版ステータスPublished - 1991 8 15
外部発表はい

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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