Synthesis of RuSr2GdCu2O8 ? δ superconductors by the sol–gel route |
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| Affiliation: | 1. School of Chemical Sciences and Food Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor D E, Malaysia;2. School of Applied Physics, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor D E, Malaysia;1. DGIST Research Center for Emerging Materials, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, Republic of Korea;2. Intelligent Devices and Systems Research Group, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, Republic of Korea;3. Global Center for Bio-Convergence Spin System, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, Republic of Korea;4. Department of Emerging Materials Science, Daegu Gyeongbuk Institute of Science and Technology, Daegu 42988, Republic of Korea;1. Institut de Physique Nucléaire d’Orsay CNRS/IN2P3 UMR 8608 - Université Paris Sud - Université Paris Saclay, F-91406 ORSAY Cedex, France;2. Laboratoire de Physique de la Matière Condensée, CNRS, Ecole Polytechnique - Université Paris Saclay, Route de Saclay, F-91128 Palaiseau, France;1. Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, Sofia 1784, Bulgaria;2. Institute of Electronics “Akad. E. Djakov”, Bulgarian Academy of Sciences, 72 Tzarigradsko Chausse Blvd, 1784 Sofia, Bulgaria;3. Institute of Metal Science, Equipment and Technologies with Hydro- and Aerodynamics Centre “Akad. A. Balevski”, Bulgarian Academy of Sciences, 67, Shipchenski Prohod Blvd, 1574 Sofia, Bulgaria;1. Joint Institute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Moscow Region, Russia;2. The Institute of Nuclear Physics, Ibragimov St. 1, 050032 Almaty, Kazakhstan;3. L.N. Gumilyov Eurasian National University, Satpayev St. 2, 010008 Astana, Kazakhstan;4. P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Leninskij pr., 53, 119991 Moscow, Russia;5. Institute of Physics, Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic;6. Institute of Plasma Physics, Czech Academy of Sciences, Za Slovankou 3, 182 00 Prague 8, Czech Republic;7. National Research Center ‘Kurchatov Institute’, Kurchatov Sq. 1, 123182 Moscow, Russia;1. Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, DK-5230 Odense M, Denmark;2. Department of Experimental Physics, Johannes Kepler University, A-4040 Linz, Austria |
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| Abstract: | The RuSr2GdCu2O8 ? δ (Ru-1212) superconductors have been prepared through the sol–gel route. We found that 1030 °C is the optimum annealing temperature for the formation of the Ru-1212 superconductors synthesized by the sol–gel route. X-ray powder diffraction analysis indicates that nearly all the peaks from the samples can be indexed to a single phase of Ru-1212, tetragonal symmetry with lattice parameters a = b = 3.382 Å, c = 11.478 Å and space group I4/mmm. The RuSr2GdCu2O8 ? δ superconductors prepared by the sol–gel method exhibit onset transition temperature Tc-onset near 55 K and zero resistance temperature Tc-zero at 45 K. |
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