Transport and magnetic properties of Bi(Pb)2212 superconducting ceramics doped by low rate of potassium

• Autorzy: Belala K. , Galluzzi A. , Mosbah M. F. , Polichetti M.

Identyfikatory

DOI

10.2478/msp-2021-0005

• Języki publikacji: EN

Abstrakty

EN

Samples of Bi_1.5Pb_0.5(Sr_1.8−xK_x)CaCu₂O_8+d and Bi_1.5Pb_0.5Sr_1.8CaCu₂O_8+dK_x 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)₂Sr_1.8 CaCu₂O_8+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.

Słowa kluczowe

EN

ceramics; superconductor; transport properties; magnetic properties

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2021
• Tom: Vol. 39, No. 1
• Strony: 15--23
• Opis fizyczny: Bibliogr. 36 poz., rys., tab.

Twórcy

autor

Belala K.

• Material Sciences and Applications Research Unit, Physics Department, Constantine 1 University, B.P. 325 Route d’Ain El Bey, Constantine, 25017, Algeria

autor

Galluzzi A.

• Department of Physics 'E.R. Caianiello' University of Salerno, Via Giovanni Paolo II, 132, Fisciano (Salerno), I-84084, Italy
• CNR-SPIN Salerno, Via Giovanni Paolo II, 123, Fisciano (Salerno), I-84084, Italy

autor

Mosbah M. F.

• Material Sciences and Applications Research Unit, Physics Department, Constantine 1 University, B.P. 325 Route d'Ain El Bey, Constantine, 25017, Algeria
• National Polytecnic School of Constantine, Nouvelle Ville Universitaire Ali Mendjeli-BP 75°RP Ali Mendjeli-Constantine, 25017, Algeria

autor

Polichetti M.

• Department of Physics 'E.R. Caianiello' University of Salerno, Via Giovanni Paolo II, 132, Fisciano (Salerno), I-84084, Italy
• CNR-SPIN Salerno, Via Giovanni Paolo II, 123, Fisciano (Salerno), I-84084, Italy

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