Hg vapor pressure, phase stability, and synthesis of Hg1-xBa2Can-1CunO 2n+2+δ with n ≤ 3

Y. Y. Xue; R. L. Meng; Q. M. Lin; B. Hickey; Y. Y. Sun; C. W. Chu

doi:10.1016/S0921-4534(97)00376-6

Hg vapor pressure, phase stability, and synthesis of Hg_1-xBa₂Ca_n-1Cu_nO _2n+2+δ with n ≤ 3

Y. Y. Xue, R. L. Meng, Q. M. Lin, B. Hickey, Y. Y. Sun, C. W. Chu

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Abstract

The stability of Hg_1-xBa₂Ca_n-1Cu_nO _2n+2+δ [Hg12(n - 1)n] and its competing phase, HgCaO₂, at synthesis temperatures were studied in terms of their equilibrium Hg vapor pressure P_Hg. It was found that the stability of Hg12(n - 1)n varies with n in a complex way. It was also observed that traces of moisture and/or carbon dioxide reduce the P_Hg of HgCaO₂, while partially substituting Re, Pb and Mo for Hg suppresses the P_Hg of Hg12(n - 1)n. Possible relationships between the beneficial substitution effect, the change of cation valence, and the defect structures in Hg12(n - 1)n are proposed.

Original language	English
Pages (from-to)	11-16
Number of pages	6
Journal	Physica C: Superconductivity and its applications
Volume	281
Issue number	1
DOIs	https://doi.org/10.1016/S0921-4534(97)00376-6
Publication status	Published - 1997

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/S0921-4534(97)00376-6

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@article{e672d30097404d5688c8a57093572128,

title = "Hg vapor pressure, phase stability, and synthesis of Hg1-xBa2Can-1CunO 2n+2+δ with n ≤ 3",

abstract = "The stability of Hg1-xBa2Can-1CunO 2n+2+δ [Hg12(n - 1)n] and its competing phase, HgCaO2, at synthesis temperatures were studied in terms of their equilibrium Hg vapor pressure PHg. It was found that the stability of Hg12(n - 1)n varies with n in a complex way. It was also observed that traces of moisture and/or carbon dioxide reduce the PHg of HgCaO2, while partially substituting Re, Pb and Mo for Hg suppresses the PHg of Hg12(n - 1)n. Possible relationships between the beneficial substitution effect, the change of cation valence, and the defect structures in Hg12(n - 1)n are proposed.",

author = "Xue, {Y. Y.} and Meng, {R. L.} and Lin, {Q. M.} and B. Hickey and Sun, {Y. Y.} and Chu, {C. W.}",

note = "Funding Information: This work is supporteidn part by NSF GrantN o DMR 95-00625D, oE, the Stateo f Texast hroughth e Texas Centerf or Superconductiviatty U niversityo f Houstona ndthe T.L.L. TempleF oundation.",

year = "1997",

doi = "10.1016/S0921-4534(97)00376-6",

language = "English",

volume = "281",

pages = "11--16",

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

issn = "0921-4534",

publisher = "Elsevier",

number = "1",

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T1 - Hg vapor pressure, phase stability, and synthesis of Hg1-xBa2Can-1CunO 2n+2+δ with n ≤ 3

AU - Xue, Y. Y.

AU - Meng, R. L.

AU - Lin, Q. M.

AU - Hickey, B.

AU - Sun, Y. Y.

AU - Chu, C. W.

N1 - Funding Information: This work is supporteidn part by NSF GrantN o DMR 95-00625D, oE, the Stateo f Texast hroughth e Texas Centerf or Superconductiviatty U niversityo f Houstona ndthe T.L.L. TempleF oundation.

PY - 1997

Y1 - 1997

N2 - The stability of Hg1-xBa2Can-1CunO 2n+2+δ [Hg12(n - 1)n] and its competing phase, HgCaO2, at synthesis temperatures were studied in terms of their equilibrium Hg vapor pressure PHg. It was found that the stability of Hg12(n - 1)n varies with n in a complex way. It was also observed that traces of moisture and/or carbon dioxide reduce the PHg of HgCaO2, while partially substituting Re, Pb and Mo for Hg suppresses the PHg of Hg12(n - 1)n. Possible relationships between the beneficial substitution effect, the change of cation valence, and the defect structures in Hg12(n - 1)n are proposed.

AB - The stability of Hg1-xBa2Can-1CunO 2n+2+δ [Hg12(n - 1)n] and its competing phase, HgCaO2, at synthesis temperatures were studied in terms of their equilibrium Hg vapor pressure PHg. It was found that the stability of Hg12(n - 1)n varies with n in a complex way. It was also observed that traces of moisture and/or carbon dioxide reduce the PHg of HgCaO2, while partially substituting Re, Pb and Mo for Hg suppresses the PHg of Hg12(n - 1)n. Possible relationships between the beneficial substitution effect, the change of cation valence, and the defect structures in Hg12(n - 1)n are proposed.

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DO - 10.1016/S0921-4534(97)00376-6

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JO - Physica C: Superconductivity and its applications

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IS - 1

ER -

Hg vapor pressure, phase stability, and synthesis of Hg_1-xBa₂Ca_n-1Cu_nO _2n+2+δ with n ≤ 3

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