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

Takao Ishii, Takao Watanabe, Kyoichi Kinoshita, Azusa Matsuda

研究成果: Article

15 引用 (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.

元の言語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
発行部数1-3
DOI
出版物ステータスPublished - 1991 8 15
外部発表Yes

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Crystallization
Superconductivity
Crystal growth
crystal growth
superconductivity
Single crystals
Magnetic shielding
high pressure oxygen
Oxide superconductors
Crystals
electrical resistivity
magnetic shielding
Copper oxides
single crystals
Magnetic variables measurement
copper oxides
electrical measurement
Superconducting transition temperature
crystals
magnetic measurement

ASJC Scopus subject areas

  • Condensed Matter Physics

これを引用

Single crystal growth and superconductivity in La1.87Ca1.13Cu2O6 . / Ishii, Takao; Watanabe, Takao; Kinoshita, Kyoichi; Matsuda, Azusa.

:: Physica C: Superconductivity and its Applications, 巻 179, 番号 1-3, 15.08.1991, p. 39-42.

研究成果: Article

Ishii, Takao ; Watanabe, Takao ; Kinoshita, Kyoichi ; Matsuda, Azusa. / Single crystal growth and superconductivity in La1.87Ca1.13Cu2O6 :: Physica C: Superconductivity and its Applications. 1991 ; 巻 179, 番号 1-3. pp. 39-42.
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