Crystal Growth by the TSFZ Method and Superconducting Properties of the Tetragonal 1-2-3 Type Cuprates

T. Noji, H. Akagawa, T. Oikawa, Y. Ono, Y. Koike

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Single crystals of Ca0.5La1.25Ba1.25Cu3Oy and NdBaSrCu3Oy with the dimensions of the order of 1×1×0.5 mm3 have been grown by the travelling-solvent floating zone method. As-grown single-crystals are tetragonal and non-superconducting. Through the annealing in oxygen, single crystals of Ca0.5La1.25Ba1.25Cu3Oy have become superconductors with Tc= 55 - 65 K, keeping the tetragonal structure. On the other hand, single crystals of NdBaSrCu3Oy have changed from tetragonal to orthorhombic through the annealing in oxygen, though they have become superconductors with Tc= 55 K.

Original languageEnglish
Pages (from-to)705-709
Number of pages5
JournalJournal of Low Temperature Physics
Volume117
Issue number3-4
Publication statusPublished - 1999 Dec 1

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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