Synthesis of nearly single-phase (Hg, Pb)Ba2Ca2Cu3O8+δ superconductors

K. Isawa; A. Tokiwa-Yamamoto; M. Itoh; S. Adachi; H. Yamauchi

doi:10.1016/0921-4534(94)91681-0

Synthesis of nearly single-phase (Hg, Pb)Ba₂Ca₂Cu₃O_8+δ superconductors

K. Isawa, A. Tokiwa-Yamamoto, M. Itoh, S. Adachi, H. Yamauchi

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

Abstract

An "encapsulation and single-firing" technique was successfully utilized for the preparation of nearly single-phase polycrystalline samples of (Hg_1-xPb_x)Ba₂Ca₂Cu₃O_8+δ[(Hg, Pb)-1223] with various Pb contents, 0≤x≤0.3. All the as-sintered samples with x≤0.3 exhibited bulk superconductivity at ∼133K. After post-annealing in flowing O₂ gas, T_c^mag of (Hg, Pb)-1223 decreased with increasing x, e. g., T_c^mag ∼124K for the sample with x=0.3. Thus, oxygenated (Hg, Pb)-1223 samples were likely to be in the overdoped region.

Original language	English
Pages (from-to)	913-914
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	235-240
Issue number	PART 2
DOIs	https://doi.org/10.1016/0921-4534(94)91681-0
Publication status	Published - 1994 Dec
Externally published	Yes

ASJC Scopus subject areas

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(94)91681-0

Cite this

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title = "Synthesis of nearly single-phase (Hg, Pb)Ba2Ca2Cu3O8+δ superconductors",

abstract = "An {"}encapsulation and single-firing{"} technique was successfully utilized for the preparation of nearly single-phase polycrystalline samples of (Hg1-xPbx)Ba2Ca2Cu3O8+δ[(Hg, Pb)-1223] with various Pb contents, 0≤x≤0.3. All the as-sintered samples with x≤0.3 exhibited bulk superconductivity at ∼133K. After post-annealing in flowing O2 gas, Tcmag of (Hg, Pb)-1223 decreased with increasing x, e. g., Tcmag ∼124K for the sample with x=0.3. Thus, oxygenated (Hg, Pb)-1223 samples were likely to be in the overdoped region.",

author = "K. Isawa and A. Tokiwa-Yamamoto and M. Itoh and S. Adachi and H. Yamauchi",

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T1 - Synthesis of nearly single-phase (Hg, Pb)Ba2Ca2Cu3O8+δ superconductors

AU - Isawa, K.

AU - Tokiwa-Yamamoto, A.

AU - Itoh, M.

AU - Adachi, S.

AU - Yamauchi, H.

PY - 1994/12

Y1 - 1994/12

N2 - An "encapsulation and single-firing" technique was successfully utilized for the preparation of nearly single-phase polycrystalline samples of (Hg1-xPbx)Ba2Ca2Cu3O8+δ[(Hg, Pb)-1223] with various Pb contents, 0≤x≤0.3. All the as-sintered samples with x≤0.3 exhibited bulk superconductivity at ∼133K. After post-annealing in flowing O2 gas, Tcmag of (Hg, Pb)-1223 decreased with increasing x, e. g., Tcmag ∼124K for the sample with x=0.3. Thus, oxygenated (Hg, Pb)-1223 samples were likely to be in the overdoped region.

AB - An "encapsulation and single-firing" technique was successfully utilized for the preparation of nearly single-phase polycrystalline samples of (Hg1-xPbx)Ba2Ca2Cu3O8+δ[(Hg, Pb)-1223] with various Pb contents, 0≤x≤0.3. All the as-sintered samples with x≤0.3 exhibited bulk superconductivity at ∼133K. After post-annealing in flowing O2 gas, Tcmag of (Hg, Pb)-1223 decreased with increasing x, e. g., Tcmag ∼124K for the sample with x=0.3. Thus, oxygenated (Hg, Pb)-1223 samples were likely to be in the overdoped region.

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Synthesis of nearly single-phase (Hg, Pb)Ba₂Ca₂Cu₃O_8+δ superconductors

Abstract

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