Transport and magnetic properties of Bi(Pb)2212 superconducting ceramics doped by low rate of potassium
| Autor: | K. Belala, M. Polichetti, A. Galluzzi, M. F. Mosbah |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Potassium chemistry.chemical_element 02 engineering and technology ceramics superconductors 01 natural sciences transport properties 0103 physical sciences General Materials Science Ceramic 010306 general physics Materials of engineering and construction. Mechanics of materials Superconductivity Condensed matter physics Mechanical Engineering Doping magnetic properties 021001 nanoscience & nanotechnology Condensed Matter Physics chemistry Mechanics of Materials visual_art TA401-492 visual_art.visual_art_medium 0210 nano-technology |
| Zdroj: | Materials Science-Poland, Vol 39, Iss 1, Pp 15-23 (2021) |
| ISSN: | 2083-134X |
| DOI: | 10.2478/msp-2021-0005 |
| Popis: | Samples of Bi1.5Pb0.5(Sr1.8−xKx)CaCu2O8+d and Bi1.5Pb0.5Sr1.8CaCu2O8+dKx have been prepared from powders of carbonates and primary oxides using the solid state reaction method and compared in this study. In the first case, potassium (K) is substituted in the strontium (Sr) site. In the second one, K is added. A part of the paper is devoted to discuss the results obtained by X-ray diffraction (XRD) analysis and scanning electron microscope (SEM) observations of (Bi,Pb)2Sr1.8CaCu2O8+d samples doped by potassium to provide additional microstructural information related to the doping method. These analyses are supplemented by resistivity and magnetic measurements. Results show how the rate of doping by potassium affects transport and magnetic properties of Bi(Pb)2212 phase. The critical current density (Jc) is improved using the two methods and it reaches a double value by the addition of K as compared to the undoped sample. |
| Databáze: | OpenAIRE |
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