Preparation of granular Bi-2212 nanowires by electrospinning

Xian Lin Zeng; Michael R. Koblischka; Thomas Karwoth; Thomas Hauet; Uwe Hartmann

doi:10.1088/1361-6668/aa544a

Preparation of granular Bi-2212 nanowires by electrospinning

Xian Lin Zeng, Michael R. Koblischka, Thomas Karwoth, Thomas Hauet, Uwe Hartmann

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

23 Citations (Scopus)

Abstract

Bi₂Sr₂CaCu₂O₈ (Bi-2212) superconducting nanowires are synthesized by the electrospinning method. Two different precursors were employed to grow the nanowires, a Pb-doped one and a Cu,Ca-enriched one. The granular polycrystalline character was confirmed by scanning electron microscopy and x-ray diffraction measurement. The magnetic and electric properties of the samples were investigated via SQUID magnetometry and four-probe resistance measurements. The superconducting transition temperatures of the two systems were found to be similar (Pb-doped 84 K, Cu,Ca-enriched 76 K), but the transition width and the onset of irreversibility were clearly different. The magnetization loops and the resistance data demonstrate that the Cu,Ca-enriched precursor yields samples with better superconducting properties.

Original language	English
Article number	035014
Journal	Superconductor Science and Technology
Volume	30
Issue number	3
DOIs	https://doi.org/10.1088/1361-6668/aa544a
Publication status	Published - 2017 Mar
Externally published	Yes

Keywords

Bi-2212
doping
electrospinning
high-T
nanowire
superconductor

ASJC Scopus subject areas

Ceramics and Composites
Condensed Matter Physics
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1088/1361-6668/aa544a

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title = "Preparation of granular Bi-2212 nanowires by electrospinning",

abstract = "Bi2Sr2CaCu2O8 (Bi-2212) superconducting nanowires are synthesized by the electrospinning method. Two different precursors were employed to grow the nanowires, a Pb-doped one and a Cu,Ca-enriched one. The granular polycrystalline character was confirmed by scanning electron microscopy and x-ray diffraction measurement. The magnetic and electric properties of the samples were investigated via SQUID magnetometry and four-probe resistance measurements. The superconducting transition temperatures of the two systems were found to be similar (Pb-doped 84 K, Cu,Ca-enriched 76 K), but the transition width and the onset of irreversibility were clearly different. The magnetization loops and the resistance data demonstrate that the Cu,Ca-enriched precursor yields samples with better superconducting properties.",

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T1 - Preparation of granular Bi-2212 nanowires by electrospinning

AU - Zeng, Xian Lin

AU - Koblischka, Michael R.

AU - Karwoth, Thomas

AU - Hauet, Thomas

AU - Hartmann, Uwe

PY - 2017/3

Y1 - 2017/3

N2 - Bi2Sr2CaCu2O8 (Bi-2212) superconducting nanowires are synthesized by the electrospinning method. Two different precursors were employed to grow the nanowires, a Pb-doped one and a Cu,Ca-enriched one. The granular polycrystalline character was confirmed by scanning electron microscopy and x-ray diffraction measurement. The magnetic and electric properties of the samples were investigated via SQUID magnetometry and four-probe resistance measurements. The superconducting transition temperatures of the two systems were found to be similar (Pb-doped 84 K, Cu,Ca-enriched 76 K), but the transition width and the onset of irreversibility were clearly different. The magnetization loops and the resistance data demonstrate that the Cu,Ca-enriched precursor yields samples with better superconducting properties.

AB - Bi2Sr2CaCu2O8 (Bi-2212) superconducting nanowires are synthesized by the electrospinning method. Two different precursors were employed to grow the nanowires, a Pb-doped one and a Cu,Ca-enriched one. The granular polycrystalline character was confirmed by scanning electron microscopy and x-ray diffraction measurement. The magnetic and electric properties of the samples were investigated via SQUID magnetometry and four-probe resistance measurements. The superconducting transition temperatures of the two systems were found to be similar (Pb-doped 84 K, Cu,Ca-enriched 76 K), but the transition width and the onset of irreversibility were clearly different. The magnetization loops and the resistance data demonstrate that the Cu,Ca-enriched precursor yields samples with better superconducting properties.

KW - Bi-2212

KW - doping

KW - electrospinning

KW - high-T

KW - nanowire

KW - superconductor

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Preparation of granular Bi-2212 nanowires by electrospinning

Abstract

Keywords

ASJC Scopus subject areas

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