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.
|Number of pages||5|
|Journal||Journal of Low Temperature Physics|
|Publication status||Published - 1999 Dec 1|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Materials Science(all)
- Condensed Matter Physics