Abstract
In order to investigate phase separation in solid, Nd1+xBa2-xCu3O6+δ powders with different compositions were annealed under different annealing conditions. The temperature - substitution ratio - oxygen content phase diagram of Nd1+xBa2-xCu3O6+δ solid solution (Nd123ss) was constructed. The condition to occur Nd123ss phase separation was clarified by investigating the compositional fluctuation, XRD pattern, the time dependences of Tc properties and oxygen content. Consequently, only orthorhombic phase with small x can separate into two orthorhombic phases with larger and smaller x by the spinodal decomposition mechanism.
Original language | English |
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Pages (from-to) | 354-358 |
Number of pages | 5 |
Journal | Physica C: Superconductivity and its applications |
Volume | 357-360 |
DOIs | |
Publication status | Published - 2001 Aug |
Keywords
- NdBaCuO
- Phase diagram
- Phase separation
- Solid solution
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering