Superconductivity in Ru 1 − x Sr 2 GdCu 2 + x O 8 − y compounds
Superconductivity in Ru 1 − x Sr 2 GdCu 2 + x O 8 − y compounds
复制标题
Ru 1 − x Sr 2 GdCu 2 + x O 8 − y 化合物中的超导性
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
J. Mais
中科院分区：
文献类型：
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作者：
P. Klamut;Bogdan Dabrowski;S. Koleśnik;M. Maxwell;J. Mais
We report on the properties of new ruthenocuprates ${mathrm{Ru}}_{1ensuremath{-}x}{mathrm{Sr}}_{2}{mathrm{GdCu}}_{2+x}{mathrm{O}}_{8ensuremath{-}y}$ $(x=0,$ 0.1, 0.2, 0.3, 0.4, and 0.75) that extend the superconductivity found previously in ${mathrm{RuSr}}_{2}{mathrm{GdCu}}_{2}{mathrm{O}}_{8}{(T}_{c}=45mathrm{K})$ to the solid solution with varied Ru/Cu ratios. The compounds have been synthesized in a high-pressure oxygen atmosphere. The maximum temperature of the superconducting transition is 72 K for the $x=0.3$ and 0.4 compositions. The reported behavior of magnetization at low temperatures can be qualitatively explained assuming a quasi-two-dimensional character of the superconducting regions in the compounds studied.
We report on the properties of new ruthenocuprates ${mathrm{Ru}}_{1ensuremath{-}x}{mathrm{Sr}}_{2}{mathrm{GdCu}}_{2+x}{mathrm{O}}_{8ensuremath{-}y}$ $(x=0,$ 0.1, 0.2, 0.3, 0.4, and 0.75) that extend the superconductivity found previously in ${mathrm{RuSr}}_{2}{mathrm{GdCu}}_{2}{mathrm{O}}_{8}{(T}_{c}=45mathrm{K})$ to the solid solution with varied Ru/Cu ratios. The compounds have been synthesized in a high-pressure oxygen atmosphere. The maximum temperature of the superconducting transition is 72 K for the $x=0.3$ and 0.4 compositions. The reported behavior of magnetization at low temperatures can be qualitatively explained assuming a quasi-two-dimensional character of the superconducting regions in the compounds studied.