New phases in the YBa(SR)Cu and BiSR, CACU oxides

Z. Iqbal; J. Barry; B. L. Ramakrishna; F. Reidinger; A. Bose; H. Eckhardt

doi:10.1016/0921-4534(88)90650-8

New phases in the YBa(SR)Cu and BiSR, CACU oxides

Z. Iqbal, J. Barry, B. L. Ramakrishna, F. Reidinger, A. Bose, H. Eckhardt

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

Abstract

The superconducting properties and structure of Y(Ba_2-xY_x)Cu₃O_7+δ and Bi₂ Sr_2-x Ca_x Cu₂O_7+δ are described. In the former material the Ba sites in the YBa₂Cu₃O₇ structure is doped by the smaller sized Y³⁺ ion to give a non-superconducting phase. Similar doping by Sr²⁺ ions can also be achieved to give a structure which shows a broadened bulk superconducting transition with T_c = 85K. When the Ba:Sr ratio is 1:1 a resistive anomaly is observed near ∼200K. The Bi -superconductor becomes superconducting near 90K with a resistive and diamagnetic transition at 112K. The structure of the ordered phase of the Bi superconductor has been obtained by high resolution electron microscope imaging and electron diffraction.

Original language	English (US)
Pages (from-to)	395-396
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	153-155
Issue number	PART 1
DOIs	https://doi.org/10.1016/0921-4534(88)90650-8
State	Published - Jun 1988
Externally published	Yes

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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10.1016/0921-4534(88)90650-8

Cite this

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title = "New phases in the YBa(SR)Cu and BiSR, CACU oxides",

abstract = "The superconducting properties and structure of Y(Ba2-xYx)Cu3O7+δ and Bi2 Sr2-x Cax Cu2O7+δ are described. In the former material the Ba sites in the YBa2Cu3O7 structure is doped by the smaller sized Y3+ ion to give a non-superconducting phase. Similar doping by Sr2+ ions can also be achieved to give a structure which shows a broadened bulk superconducting transition with Tc = 85K. When the Ba:Sr ratio is 1:1 a resistive anomaly is observed near ∼200K. The Bi -superconductor becomes superconducting near 90K with a resistive and diamagnetic transition at 112K. The structure of the ordered phase of the Bi superconductor has been obtained by high resolution electron microscope imaging and electron diffraction.",

author = "Z. Iqbal and J. Barry and Ramakrishna, {B. L.} and F. Reidinger and A. Bose and H. Eckhardt",

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T1 - New phases in the YBa(SR)Cu and BiSR, CACU oxides

AU - Iqbal, Z.

AU - Barry, J.

AU - Ramakrishna, B. L.

AU - Reidinger, F.

AU - Bose, A.

AU - Eckhardt, H.

PY - 1988/6

Y1 - 1988/6

N2 - The superconducting properties and structure of Y(Ba2-xYx)Cu3O7+δ and Bi2 Sr2-x Cax Cu2O7+δ are described. In the former material the Ba sites in the YBa2Cu3O7 structure is doped by the smaller sized Y3+ ion to give a non-superconducting phase. Similar doping by Sr2+ ions can also be achieved to give a structure which shows a broadened bulk superconducting transition with Tc = 85K. When the Ba:Sr ratio is 1:1 a resistive anomaly is observed near ∼200K. The Bi -superconductor becomes superconducting near 90K with a resistive and diamagnetic transition at 112K. The structure of the ordered phase of the Bi superconductor has been obtained by high resolution electron microscope imaging and electron diffraction.

AB - The superconducting properties and structure of Y(Ba2-xYx)Cu3O7+δ and Bi2 Sr2-x Cax Cu2O7+δ are described. In the former material the Ba sites in the YBa2Cu3O7 structure is doped by the smaller sized Y3+ ion to give a non-superconducting phase. Similar doping by Sr2+ ions can also be achieved to give a structure which shows a broadened bulk superconducting transition with Tc = 85K. When the Ba:Sr ratio is 1:1 a resistive anomaly is observed near ∼200K. The Bi -superconductor becomes superconducting near 90K with a resistive and diamagnetic transition at 112K. The structure of the ordered phase of the Bi superconductor has been obtained by high resolution electron microscope imaging and electron diffraction.

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ER -

New phases in the YBa(SR)Cu and BiSR, CACU oxides

Abstract

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