Suppression of superconductivity by lanthanum substitution in the Bi4Ca3Sr3Cu4Oy system

N. Ikeda; K. Kohn; E. V. Sampathkumaran; R. Vijayaraghavan

doi:10.1016/0038-1098(88)90243-8

Suppression of superconductivity by lanthanum substitution in the Bi₄Ca₃Sr₃Cu₄O_y system

N. Ikeda
, K. Kohn
, E. V. Sampathkumaran
, R. Vijayaraghavan

研究成果 › 査読

11 被引用数 (Scopus)

抄録

The influence of partial substitution of La for Bi on the superconductivity of Bi₄Ca₃Sr₃Cu₄O_y (y = undetermined) is investigated by DC resistance (R) and AC susceptibility (χ) measurements and compared with the behaviour in the corresponding Eu and Gd substituted specimens. The results suggest that La suppresses superconductivity much faster than Eu and Gd substituents. We propose that the depression of superconductivity by La is not simply due to disorder, but due to the presence of extended 4f electrons.

本文言語	English
ページ（範囲）	51-55
ページ数	5
ジャーナル	Solid State Communications
巻	68
号	1
DOI	https://doi.org/10.1016/0038-1098(88)90243-8
出版ステータス	Published - 10月 1988
外部発表	はい

ASJC Scopus subject areas

化学一般
凝縮系物理学
材料化学

文献へのアクセス

10.1016/0038-1098(88)90243-8

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引用スタイル

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AB - The influence of partial substitution of La for Bi on the superconductivity of Bi4Ca3Sr3Cu4Oy (y = undetermined) is investigated by DC resistance (R) and AC susceptibility (χ) measurements and compared with the behaviour in the corresponding Eu and Gd substituted specimens. The results suggest that La suppresses superconductivity much faster than Eu and Gd substituents. We propose that the depression of superconductivity by La is not simply due to disorder, but due to the presence of extended 4f electrons.

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