Superconducting properties of bulk YBa2Cu3O7-y prepared by a quench and melt growth process

M. Morita, M. Murakami, K. Miyamoto, K. Sawano, S. Matsuda

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


Large crystals of YBa2CuO3O7-y were undirectionally and continuously grown by a modified Quench and Melt Growth (QMG) process with a temperature gradient. Superconducting properties of these crystals were measured. Samples prepared by a conventional QMG process without a temperature gradient have high critical current density (Jc) values exceeding 104A/cm2 at 1T and 77K. However, crystals prepared by this process without a temperature gradient were small, i.e. 30mm2×1mm. We modified the QMG method to grow superconducting crystals using a temperature gradient, and obtained large crystals up to 200mm2×1.5mm. It was found that superconducting current flowed throughout the crystal. A Jc value as high as conventional QMG processed materials was confirmed by the magnetic induced field method.

Original languageEnglish
Pages (from-to)1217-1218
Number of pages2
JournalPhysica C: Superconductivity and its applications
Issue numberPART 2
Publication statusPublished - 1989 Dec
Externally publishedYes

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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