Enhanced critical current density in the BSCCO single crystal grown by the traveling solvent floating zone method

N. Chikumoto; K. Furusawa; M. Murakami

doi:10.1016/j.physc.2004.01.069

Enhanced critical current density in the BSCCO single crystal grown by the traveling solvent floating zone method

N. Chikumoto, K. Furusawa, M. Murakami

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

5 Citations (Scopus)

Abstract

We have successfully grown BSCCO single crystals showing high critical current density of 2×10⁶ A/cm² at 20 K. Magneto-optical observation showed that the sample exhibited inhomogeneous penetration of magnetic flux correlated with the crystal b-axis. According to compositional analyses using wave-dispersive spectrometry (WDS), the crystals consisted of two phases, for which the Ca content was slightly different. It was also found that the values of the overall critical current density derived from the magnetization measurements depend on the portion of these two regions. Transmission electron microscopy revealed that strong pinning materials contain the region with a short incommensulate modulation period compared to the previously reported values, which might be responsible for extremely high J _c values.

Original language	English
Pages (from-to)	463-466
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	412-414
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physc.2004.01.069
Publication status	Published - 2004 Oct 1

Keywords

Bi2212
Critical current density
Magneto-optical imaging

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/j.physc.2004.01.069

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AU - Furusawa, K.

AU - Murakami, M.

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