Synthesis of Ca-substituted Y1-xCaxBa2Cu4O8 at ambient pressure using CuI

X. G. Zheng; M. Suzuki; C. Xu; H. Kuriyaki; K. Hirakawa

doi:10.1016/S0921-4534(96)00493-5

Synthesis of Ca-substituted Y_1-xCa_xBa₂Cu₄O₈ at ambient pressure using CuI

X. G. Zheng, M. Suzuki, C. Xu, H. Kuriyaki, K. Hirakawa

Electronic Devices

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18 Citations (Scopus)

Abstract

Ca-substituted Y124 superconductors Y_1-xCa_xBa₂Cu₄O₈ (x = 0.05, 0.1) were synthesized at ambient oxygen pressure by a solid-state reaction method which used CuI instead of the conventional CuO. Experimental results showed a promoting effect of copper iodide on the formation of the 124 phase at normal oxygen pressure. T_c determined from the Meissner effect was 88 K for x = 0.05 and 90 K for x = 0.1. For the same Ca-substitution rates T_{c(zero-resistance)} of 80.5 K and 82.0 K was obtained respectively.

Original language	English
Pages (from-to)	272-276
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	271
Issue number	3-4
DOIs	https://doi.org/10.1016/S0921-4534(96)00493-5
Publication status	Published - Nov 10 1996

All Science Journal Classification (ASJC) codes

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

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title = "Synthesis of Ca-substituted Y1-xCaxBa2Cu4O8 at ambient pressure using CuI",

abstract = "Ca-substituted Y124 superconductors Y1-xCaxBa2Cu4O8 (x = 0.05, 0.1) were synthesized at ambient oxygen pressure by a solid-state reaction method which used CuI instead of the conventional CuO. Experimental results showed a promoting effect of copper iodide on the formation of the 124 phase at normal oxygen pressure. Tc determined from the Meissner effect was 88 K for x = 0.05 and 90 K for x = 0.1. For the same Ca-substitution rates Tc(zero-resistance) of 80.5 K and 82.0 K was obtained respectively.",

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T1 - Synthesis of Ca-substituted Y1-xCaxBa2Cu4O8 at ambient pressure using CuI

AU - Zheng, X. G.

AU - Suzuki, M.

AU - Xu, C.

AU - Kuriyaki, H.

AU - Hirakawa, K.

PY - 1996/11/10

Y1 - 1996/11/10

N2 - Ca-substituted Y124 superconductors Y1-xCaxBa2Cu4O8 (x = 0.05, 0.1) were synthesized at ambient oxygen pressure by a solid-state reaction method which used CuI instead of the conventional CuO. Experimental results showed a promoting effect of copper iodide on the formation of the 124 phase at normal oxygen pressure. Tc determined from the Meissner effect was 88 K for x = 0.05 and 90 K for x = 0.1. For the same Ca-substitution rates Tc(zero-resistance) of 80.5 K and 82.0 K was obtained respectively.

AB - Ca-substituted Y124 superconductors Y1-xCaxBa2Cu4O8 (x = 0.05, 0.1) were synthesized at ambient oxygen pressure by a solid-state reaction method which used CuI instead of the conventional CuO. Experimental results showed a promoting effect of copper iodide on the formation of the 124 phase at normal oxygen pressure. Tc determined from the Meissner effect was 88 K for x = 0.05 and 90 K for x = 0.1. For the same Ca-substitution rates Tc(zero-resistance) of 80.5 K and 82.0 K was obtained respectively.

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Synthesis of Ca-substituted Y_1-xCa_xBa₂Cu₄O₈ at ambient pressure using CuI

Abstract

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