Formation of proposed superconducting phases in nominal compositions Bi1.7Pb0.3Sr2Ca x − 1Cu x O y (x = 4, 5, 7, 9) on the basis of amorphous precursors, obtained under the action of concentrated sunlight
D. D. GulamovaInstitute of Materials Science, NPO “Fizika-Solntse”, Academy of Sciences, Republic of Uzbekistan Andronikashvili Institute of Physics, Tbilisi, GeorgiaD. E. UskenbaevInstitute of Materials Science, NPO “Fizika-Solntse”, Academy of Sciences, Republic of Uzbekistan Andronikashvili Institute of Physics, Tbilisi, GeorgiaZh. Sh. TurdievInstitute of Materials Science, NPO “Fizika-Solntse”, Academy of Sciences, Republic of Uzbekistan Andronikashvili Institute of Physics, Tbilisi, GeorgiaД.Г. ЧигвинадзеInstitute of Materials Science, NPO “Fizika-Solntse”, Academy of Sciences, Republic of Uzbekistan Andronikashvili Institute of Physics, Tbilisi, GeorgiaO. V. MagradzeInstitute of Materials Science, NPO “Fizika-Solntse”, Academy of Sciences, Republic of Uzbekistan Andronikashvili Institute of Physics, Tbilisi, Georgia
ABI
Аннотация
The possibility of obtaining superconducting phases in compositions Bi1.7Pb0.3Sr2Ca x − 1Cu x O y (x = 4, 5, 7, 9) with increased Ca and Cu content from amorphous precursors that are obtained under the action of concentrated sunlight is investigated. It is established that the temperature of formation of the superconducting phases decreases with increase of the Ca and Cu content.
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