HREM on the new superconducting compound Nd1.5Ce0.5Sr2Cu2NbO10-δ

H. W. Zandbergen; R. J. Cava; J. J. Krajewski; W. F. Peck

doi:10.1016/0921-4534(92)90764-4

HREM on the new superconducting compound Nd_1.5Ce_0.5Sr₂Cu₂NbO_10-δ

H. W. Zandbergen, R. J. Cava, J. J. Krajewski, W. F. Peck

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Abstract

Nd_1.5Ce_0.5Sr₂Cu₂NbO_10-δ has been studied with high resolution electron microscopy and electron diffraction. The structure consists of a block of layers CuO₂SrONbO₂SrOCuO₂ having a perovskite-like structure sandwiched with a (Nd,Ce)O₂(Nd,Ce) block which has a fluorite-like stacking. A a_p√2, a_p√2, c superstructure (space group Acam) occurs due to rotation of the NbO₆ octahedra about the c-axis. The supercell ordering along the c-axis is very short range resulting in strongly streaked superreflections along c^*.

Original language	English (US)
Pages (from-to)	223-229
Number of pages	7
Journal	Physica C: Superconductivity and its applications
Volume	192
Issue number	1-2
DOIs	https://doi.org/10.1016/0921-4534(92)90764-4
State	Published - Mar 1 1992
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(92)90764-4

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title = "HREM on the new superconducting compound Nd1.5Ce0.5Sr2Cu2NbO10-δ",

abstract = "Nd1.5Ce0.5Sr2Cu2NbO10-δ has been studied with high resolution electron microscopy and electron diffraction. The structure consists of a block of layers CuO2SrONbO2SrOCuO2 having a perovskite-like structure sandwiched with a (Nd,Ce)O2(Nd,Ce) block which has a fluorite-like stacking. A ap√2, ap√2, c superstructure (space group Acam) occurs due to rotation of the NbO6 octahedra about the c-axis. The supercell ordering along the c-axis is very short range resulting in strongly streaked superreflections along c*.",

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doi = "10.1016/0921-4534(92)90764-4",

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T1 - HREM on the new superconducting compound Nd1.5Ce0.5Sr2Cu2NbO10-δ

AU - Zandbergen, H. W.

AU - Cava, R. J.

AU - Krajewski, J. J.

AU - Peck, W. F.

PY - 1992/3/1

Y1 - 1992/3/1

N2 - Nd1.5Ce0.5Sr2Cu2NbO10-δ has been studied with high resolution electron microscopy and electron diffraction. The structure consists of a block of layers CuO2SrONbO2SrOCuO2 having a perovskite-like structure sandwiched with a (Nd,Ce)O2(Nd,Ce) block which has a fluorite-like stacking. A ap√2, ap√2, c superstructure (space group Acam) occurs due to rotation of the NbO6 octahedra about the c-axis. The supercell ordering along the c-axis is very short range resulting in strongly streaked superreflections along c*.

AB - Nd1.5Ce0.5Sr2Cu2NbO10-δ has been studied with high resolution electron microscopy and electron diffraction. The structure consists of a block of layers CuO2SrONbO2SrOCuO2 having a perovskite-like structure sandwiched with a (Nd,Ce)O2(Nd,Ce) block which has a fluorite-like stacking. A ap√2, ap√2, c superstructure (space group Acam) occurs due to rotation of the NbO6 octahedra about the c-axis. The supercell ordering along the c-axis is very short range resulting in strongly streaked superreflections along c*.

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HREM on the new superconducting compound Nd_1.5Ce_0.5Sr₂Cu₂NbO_10-δ

Abstract

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