Crystal structure of the high-Tc superconductor Ba2YCu3O9-

T. Siegrist; S. Sunshine; D. W. Murphy; R. J. Cava; S. M. Zahurak

doi:10.1103/PhysRevB.35.7137

Crystal structure of the high-Tc superconductor Ba2YCu3O9-

T. Siegrist, S. Sunshine, D. W. Murphy, R. J. Cava, S. M. Zahurak

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Abstract

The crystal structure of the high-Tc superconducting phase Ba2YCu3O9-(=2.0) has been determined by single-crystal x-ray diffraction. The compound crystallizes in an orthorhombic, oxygen-deficient perovskite superstructure with space group Pmmm, a=3.856(2) A b=3.870(2) A, and c=11.666(3) A. The ordering of Ba and Y in a [Ba-Y-Ba] sequence along the c axis is responsible for the tripled cell. Two [CuO2] planes with copper in distorted square planar coordination are the key to conductivity.

Original language	English (US)
Pages (from-to)	7137-7139
Number of pages	3
Journal	Physical Review B
Volume	35
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevB.35.7137
State	Published - 1987
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1103/PhysRevB.35.7137

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title = "Crystal structure of the high-Tc superconductor Ba2YCu3O9-",

abstract = "The crystal structure of the high-Tc superconducting phase Ba2YCu3O9-(=2.0) has been determined by single-crystal x-ray diffraction. The compound crystallizes in an orthorhombic, oxygen-deficient perovskite superstructure with space group Pmmm, a=3.856(2) A b=3.870(2) A, and c=11.666(3) A. The ordering of Ba and Y in a [Ba-Y-Ba] sequence along the c axis is responsible for the tripled cell. Two [CuO2] planes with copper in distorted square planar coordination are the key to conductivity.",

author = "T. Siegrist and S. Sunshine and Murphy, {D. W.} and Cava, {R. J.} and Zahurak, {S. M.}",

year = "1987",

doi = "10.1103/PhysRevB.35.7137",

language = "English (US)",

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journal = "Physical Review B",

issn = "0163-1829",

publisher = "American Physical Society",

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T1 - Crystal structure of the high-Tc superconductor Ba2YCu3O9-

AU - Siegrist, T.

AU - Sunshine, S.

AU - Murphy, D. W.

AU - Cava, R. J.

AU - Zahurak, S. M.

PY - 1987

Y1 - 1987

N2 - The crystal structure of the high-Tc superconducting phase Ba2YCu3O9-(=2.0) has been determined by single-crystal x-ray diffraction. The compound crystallizes in an orthorhombic, oxygen-deficient perovskite superstructure with space group Pmmm, a=3.856(2) A b=3.870(2) A, and c=11.666(3) A. The ordering of Ba and Y in a [Ba-Y-Ba] sequence along the c axis is responsible for the tripled cell. Two [CuO2] planes with copper in distorted square planar coordination are the key to conductivity.

AB - The crystal structure of the high-Tc superconducting phase Ba2YCu3O9-(=2.0) has been determined by single-crystal x-ray diffraction. The compound crystallizes in an orthorhombic, oxygen-deficient perovskite superstructure with space group Pmmm, a=3.856(2) A b=3.870(2) A, and c=11.666(3) A. The ordering of Ba and Y in a [Ba-Y-Ba] sequence along the c axis is responsible for the tripled cell. Two [CuO2] planes with copper in distorted square planar coordination are the key to conductivity.

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JO - Physical Review B

JF - Physical Review B

IS - 13

ER -

Crystal structure of the high-Tc superconductor Ba2YCu3O9-

Abstract

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