Structure of La1.85Sr0.15 CuO4 doped with Zn in high doping level

X. S. Wu; S. S. Jiang; N. Xu; F. M. Pan; X. R. Huang; W. Ji; Zhiqiang Mao; Gaoji Xu; Yuheng Zhang

doi:10.1016/0921-4534(96)00336-X

Structure of La_1.85Sr_0.15 CuO₄ doped with Zn in high doping level

X. S. Wu, S. S. Jiang, N. Xu, F. M. Pan, X. R. Huang, W. Ji, Zhiqiang Mao, Gaoji Xu, Yuheng Zhang

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

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Abstract

Practically impurity-free ceramic superconductors of La_1.85Sr_0.15Cu_1-yZn_yO₄ with 0.00 ≤ y ≤ 0.30 were synthesized. The structure of these Zn-doped samples was characterized by X-ray diffraction studies. Rietveld refinements show that there is a tetragonal-to-orthorhombic phase transition which occurs at about y = 0.15. The bond length between the two apical oxygen atoms in the CuO₆ octahedra for the Zn-doped samples decreases with increasing content of Zn in the tetragonal region, and the tilt angle of the CuO₆ octahedra increases with the content of Zn in the orthorhombic region. The metal-insulator transition is also observed in this Zn-doped systems.

Original language	English (US)
Pages (from-to)	296-302
Number of pages	7
Journal	Physica C: Superconductivity and its applications
Volume	266
Issue number	3-4
DOIs	https://doi.org/10.1016/0921-4534(96)00336-X
State	Published - Aug 1 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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10.1016/0921-4534(96)00336-X

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title = "Structure of La1.85Sr0.15 CuO4 doped with Zn in high doping level",

abstract = "Practically impurity-free ceramic superconductors of La1.85Sr0.15Cu1-yZnyO4 with 0.00 ≤ y ≤ 0.30 were synthesized. The structure of these Zn-doped samples was characterized by X-ray diffraction studies. Rietveld refinements show that there is a tetragonal-to-orthorhombic phase transition which occurs at about y = 0.15. The bond length between the two apical oxygen atoms in the CuO6 octahedra for the Zn-doped samples decreases with increasing content of Zn in the tetragonal region, and the tilt angle of the CuO6 octahedra increases with the content of Zn in the orthorhombic region. The metal-insulator transition is also observed in this Zn-doped systems.",

author = "Wu, {X. S.} and Jiang, {S. S.} and N. Xu and Pan, {F. M.} and Huang, {X. R.} and W. Ji and Zhiqiang Mao and Gaoji Xu and Yuheng Zhang",

year = "1996",

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doi = "10.1016/0921-4534(96)00336-X",

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T1 - Structure of La1.85Sr0.15 CuO4 doped with Zn in high doping level

AU - Wu, X. S.

AU - Jiang, S. S.

AU - Xu, N.

AU - Pan, F. M.

AU - Huang, X. R.

AU - Ji, W.

AU - Mao, Zhiqiang

AU - Xu, Gaoji

AU - Zhang, Yuheng

PY - 1996/8/1

Y1 - 1996/8/1

N2 - Practically impurity-free ceramic superconductors of La1.85Sr0.15Cu1-yZnyO4 with 0.00 ≤ y ≤ 0.30 were synthesized. The structure of these Zn-doped samples was characterized by X-ray diffraction studies. Rietveld refinements show that there is a tetragonal-to-orthorhombic phase transition which occurs at about y = 0.15. The bond length between the two apical oxygen atoms in the CuO6 octahedra for the Zn-doped samples decreases with increasing content of Zn in the tetragonal region, and the tilt angle of the CuO6 octahedra increases with the content of Zn in the orthorhombic region. The metal-insulator transition is also observed in this Zn-doped systems.

AB - Practically impurity-free ceramic superconductors of La1.85Sr0.15Cu1-yZnyO4 with 0.00 ≤ y ≤ 0.30 were synthesized. The structure of these Zn-doped samples was characterized by X-ray diffraction studies. Rietveld refinements show that there is a tetragonal-to-orthorhombic phase transition which occurs at about y = 0.15. The bond length between the two apical oxygen atoms in the CuO6 octahedra for the Zn-doped samples decreases with increasing content of Zn in the tetragonal region, and the tilt angle of the CuO6 octahedra increases with the content of Zn in the orthorhombic region. The metal-insulator transition is also observed in this Zn-doped systems.

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Structure of La_1.85Sr_0.15 CuO₄ doped with Zn in high doping level

Abstract

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