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 language | English |
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Pages (from-to) | 705-709 |
Number of pages | 5 |
Journal | Journal of Low Temperature Physics |
Volume | 117 |
Issue number | 3-4 |
Publication status | Published - 1999 Dec 1 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Materials Science(all)
- Condensed Matter Physics