Superconductivity in Bi2.2Ca2.8-x Sr x Cu2O y system and effect of rare earth substitution

Ram Prasad; N. C. Soni; A. Gulnar; C. V. Tomy; D. T. Adroja; S. K. Malik

doi:10.1007/BF02935606

Superconductivity in Bi_2.2Ca_2.8-x Sr_x Cu₂O_y system and effect of rare earth substitution

Ram Prasad, N. C. Soni, A. Gulnar, C. V. Tomy, D. T. Adroja, S. K. Malik

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The oxide system Bi_2.2Ca_2.8-x Sr_x Cu₂O_y has been investigated for superconductivity as a function of Ca/Sr ratio with x=0.7, 1.0, 1.4 and 1.8. All these compositions are found to be superconducting with onset temperature in the range of 80-90 K implying a large homogeneity range between Sr and Ca for the superconductivity to occur in this system. Effect of partial replacement of Bi by rare earths has been studied and it is observed that 20% replacement of Bi by Nd and Eu does not significantly affect the superconducting transition temperature.

Original language	English
Pages (from-to)	L477-L481
Journal	Pramana - Journal of Physics
Volume	30
Issue number	5
DOIs	https://doi.org/10.1007/BF02935606
Publication status	Published - May 1988
Externally published	Yes

Keywords

74.30
High T superconductivity
oxide superconductors
rare earths

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1007/BF02935606

Cite this

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title = "Superconductivity in Bi2.2Ca2.8-x Sr x Cu2O y system and effect of rare earth substitution",

abstract = "The oxide system Bi2.2Ca2.8-x Sr x Cu2O y has been investigated for superconductivity as a function of Ca/Sr ratio with x=0.7, 1.0, 1.4 and 1.8. All these compositions are found to be superconducting with onset temperature in the range of 80-90 K implying a large homogeneity range between Sr and Ca for the superconductivity to occur in this system. Effect of partial replacement of Bi by rare earths has been studied and it is observed that 20% replacement of Bi by Nd and Eu does not significantly affect the superconducting transition temperature.",

keywords = "74.30, High T superconductivity, oxide superconductors, rare earths",

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T1 - Superconductivity in Bi2.2Ca2.8-x Sr x Cu2O y system and effect of rare earth substitution

AU - Prasad, Ram

AU - Soni, N. C.

AU - Gulnar, A.

AU - Tomy, C. V.

AU - Adroja, D. T.

AU - Malik, S. K.

PY - 1988/5

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AB - The oxide system Bi2.2Ca2.8-x Sr x Cu2O y has been investigated for superconductivity as a function of Ca/Sr ratio with x=0.7, 1.0, 1.4 and 1.8. All these compositions are found to be superconducting with onset temperature in the range of 80-90 K implying a large homogeneity range between Sr and Ca for the superconductivity to occur in this system. Effect of partial replacement of Bi by rare earths has been studied and it is observed that 20% replacement of Bi by Nd and Eu does not significantly affect the superconducting transition temperature.

KW - 74.30

KW - High T superconductivity

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KW - rare earths

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