Abstract
The polymerizable complex method was successfully applied for synthesis of RuCe0.5Eu1.5Sr2Cu2O10 compound. To obtain single-phase samples one should control oxygen partial pressure and prevent Ru loss by conducting synthesis in the sealed volume. Prepared single-phase samples became ferromagnetic below 120 K and did not show bulk superconductivity down to 7 K. The additional annealing in oxygen at 500 °C, PO2 = 10 atm resulted in the R(T) dependence of more metallic character, however it did not increase superconducting phase fraction to a significant extent. On the other hand, preparation of RuxCe0.5Eu1.5Sr2Cu2O 10 samples and studies of their superconducting properties revealed that appearance of superconductivity in the case of Ru-1222 phases might be related to the Ru loss during high temperature synthesis.
Original language | English |
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Pages (from-to) | 47-51 |
Number of pages | 5 |
Journal | Physica C: Superconductivity and its applications |
Volume | 378-381 |
Issue number | PART 1 |
DOIs | |
Publication status | Published - 2002 Oct 1 |
Externally published | Yes |
Keywords
- Ferromagnetism
- Ru-1222
- Ruthenocuprate
- Sol-gel method
- Superconducting properties
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering