Structural and transport properties of Bi2Sr2-xMxCuO6±δ (MBi and Pb)

H. T. Shih; K. V. Ramanujachary; M. Greenblatt

doi:10.1016/0921-4534(91)90699-Y

Structural and transport properties of Bi₂Sr_2-xM_xCuO_6±δ (MBi and Pb)

H. T. Shih, K. V. Ramanujachary, M. Greenblatt

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

6 Scopus citations

Abstract

Solid solutions of Bi₂S_2-xM_xCuO_6±δ (MBi or Pb) were prepared with 0.1 ≤ x ≤ 0.5 for MPh and 0.2 ≤ x 0.5 for MBi. Both Pb and Bi are effective in stabilizing the 2201 phase, when substituted for Sr. However, the Pb substitution induces a pseudotetragonal to orthorhombic phase transition. Variation of the unit cell parameters and δ with x in Bi₂Sr_2-xPb_xCuO_6±δ suggest that Pb is in the Pb^IV formal oxidation state and appears to substitute at least partially for the Bi site. No evidence for superconductivity was observed for either substitutions in the "as prepared" samples, regardless of the value of x. However, annealing a sample of Bi₂Sr_1.9Pb_0.1CuO_6±δ in inert atmosphere showed the onset of superconductivity at ≈ 8 K.

Original language	English (US)
Pages (from-to)	87-94
Number of pages	8
Journal	Physica C: Superconductivity and its applications
Volume	176
Issue number	1-3
DOIs	https://doi.org/10.1016/0921-4534(91)90699-Y
State	Published - May 15 1991
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(91)90699-Y

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title = "Structural and transport properties of Bi2Sr2-xMxCuO6±δ (MBi and Pb)",

abstract = "Solid solutions of Bi2S2-xMxCuO6±δ (MBi or Pb) were prepared with 0.1 ≤ x ≤ 0.5 for MPh and 0.2 ≤ x 0.5 for MBi. Both Pb and Bi are effective in stabilizing the 2201 phase, when substituted for Sr. However, the Pb substitution induces a pseudotetragonal to orthorhombic phase transition. Variation of the unit cell parameters and δ with x in Bi2Sr2-xPbxCuO6±δ suggest that Pb is in the PbIV formal oxidation state and appears to substitute at least partially for the Bi site. No evidence for superconductivity was observed for either substitutions in the {"}as prepared{"} samples, regardless of the value of x. However, annealing a sample of Bi2Sr1.9Pb0.1CuO6±δ in inert atmosphere showed the onset of superconductivity at ≈ 8 K.",

author = "Shih, {H. T.} and Ramanujachary, {K. V.} and M. Greenblatt",

note = "Funding Information: Helpful discussions with S. Li are greatly appreciated. The work is supported by the Office of Naval Research and by the National Science Foundation-Solid State Chemistry Grant DMR-87-14072.",

year = "1991",

month = may,

day = "15",

doi = "10.1016/0921-4534(91)90699-Y",

language = "English (US)",

volume = "176",

pages = "87--94",

journal = "Physica C: Superconductivity and its applications",

issn = "0921-4534",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Structural and transport properties of Bi2Sr2-xMxCuO6±δ (MBi and Pb)

AU - Shih, H. T.

AU - Ramanujachary, K. V.

AU - Greenblatt, M.

N1 - Funding Information: Helpful discussions with S. Li are greatly appreciated. The work is supported by the Office of Naval Research and by the National Science Foundation-Solid State Chemistry Grant DMR-87-14072.

PY - 1991/5/15

Y1 - 1991/5/15

N2 - Solid solutions of Bi2S2-xMxCuO6±δ (MBi or Pb) were prepared with 0.1 ≤ x ≤ 0.5 for MPh and 0.2 ≤ x 0.5 for MBi. Both Pb and Bi are effective in stabilizing the 2201 phase, when substituted for Sr. However, the Pb substitution induces a pseudotetragonal to orthorhombic phase transition. Variation of the unit cell parameters and δ with x in Bi2Sr2-xPbxCuO6±δ suggest that Pb is in the PbIV formal oxidation state and appears to substitute at least partially for the Bi site. No evidence for superconductivity was observed for either substitutions in the "as prepared" samples, regardless of the value of x. However, annealing a sample of Bi2Sr1.9Pb0.1CuO6±δ in inert atmosphere showed the onset of superconductivity at ≈ 8 K.

AB - Solid solutions of Bi2S2-xMxCuO6±δ (MBi or Pb) were prepared with 0.1 ≤ x ≤ 0.5 for MPh and 0.2 ≤ x 0.5 for MBi. Both Pb and Bi are effective in stabilizing the 2201 phase, when substituted for Sr. However, the Pb substitution induces a pseudotetragonal to orthorhombic phase transition. Variation of the unit cell parameters and δ with x in Bi2Sr2-xPbxCuO6±δ suggest that Pb is in the PbIV formal oxidation state and appears to substitute at least partially for the Bi site. No evidence for superconductivity was observed for either substitutions in the "as prepared" samples, regardless of the value of x. However, annealing a sample of Bi2Sr1.9Pb0.1CuO6±δ in inert atmosphere showed the onset of superconductivity at ≈ 8 K.

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JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

IS - 1-3

ER -

Structural and transport properties of Bi₂Sr_2-xM_xCuO_6±δ (MBi and Pb)

Abstract

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