Synthesis of Ca-substituted Y
                        1-x
                        Ca
                        x
                        Ba
                        2
                        Cu
                        4
                        O
                        8
                         at ambient pressure using CuI

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

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

Synthesis of Ca-substituted Y _1-x Ca _x Ba ₂ Cu ₄ O ₈ at ambient pressure using CuI

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

Electronic Devices

Research output: Contribution to journal › Article

18 Citations (Scopus)

Abstract

Ca-substituted Y124 superconductors Y _1-x Ca _x Ba ₂ Cu ₄ O ₈ (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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Zheng, X. G., Suzuki, M., Xu, C., Kuriyaki, H., & Hirakawa, K. (1996). Synthesis of Ca-substituted Y _1-x Ca _x Ba ₂ Cu ₄ O ₈ at ambient pressure using CuI Physica C: Superconductivity and its applications, 271(3-4), 272-276. https://doi.org/10.1016/S0921-4534(96)00493-5

Synthesis of Ca-substituted Y _1-x Ca _x Ba ₂ Cu ₄ O ₈ at ambient pressure using CuI . / Zheng, X. G.; Suzuki, M.; Xu, C.; Kuriyaki, Hisao; Hirakawa, K.

In: Physica C: Superconductivity and its applications, Vol. 271, No. 3-4, 10.11.1996, p. 272-276.

Research output: Contribution to journal › Article

Zheng, XG, Suzuki, M, Xu, C, Kuriyaki, H & Hirakawa, K 1996, ' Synthesis of Ca-substituted Y _1-x Ca _x Ba ₂ Cu ₄ O ₈ at ambient pressure using CuI ', Physica C: Superconductivity and its applications, vol. 271, no. 3-4, pp. 272-276. https://doi.org/10.1016/S0921-4534(96)00493-5

Zheng XG, Suzuki M, Xu C, Kuriyaki H, Hirakawa K. Synthesis of Ca-substituted Y _1-x Ca _x Ba ₂ Cu ₄ O ₈ at ambient pressure using CuI Physica C: Superconductivity and its applications. 1996 Nov 10;271(3-4):272-276. https://doi.org/10.1016/S0921-4534(96)00493-5

Zheng, X. G. ; Suzuki, M. ; Xu, C. ; Kuriyaki, Hisao ; Hirakawa, K. / Synthesis of Ca-substituted Y _1-x Ca _x Ba ₂ Cu ₄ O ₈ at ambient pressure using CuI In: Physica C: Superconductivity and its applications. 1996 ; Vol. 271, No. 3-4. pp. 272-276.

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