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

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

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

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
Volume162-164
Issue numberPART 2
DOIs
Publication statusPublished - 1989
Externally publishedYes

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Thermal gradients
Crystals
temperature gradients
crystals
barium copper yttrium oxide
critical current
current density

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Superconducting properties of bulk YBa2Cu3O7-y prepared by a quench and melt growth process. / Morita, M.; Murakami, Masato; Miyamoto, K.; Sawano, K.; Matsuda, S.

In: Physica C: Superconductivity and its Applications, Vol. 162-164, No. PART 2, 1989, p. 1217-1218.

Research output: Contribution to journalArticle

Morita, M. ; Murakami, Masato ; Miyamoto, K. ; Sawano, K. ; Matsuda, S. / Superconducting properties of bulk YBa2Cu3O7-y prepared by a quench and melt growth process. In: Physica C: Superconductivity and its Applications. 1989 ; Vol. 162-164, No. PART 2. pp. 1217-1218.
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