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2025 Vol.35, Issue 6 Preview Page

Research Paper

Structural and Electrical Properties of Bi2Ba2Ca2Cu3O10+δ Superconductor
Kareem Ali Jasim1†
1Department of Physics, College of Education for Pure Science (Ibn Al-Haitham), University of Baghdad, Baghdad 10001, Iraq
†Corresponding author E-Mail : Kareem.a.j@ihcoedu.uobaghdad.edu.iq (K. A. Jasim, Univ. Baghdad)
27 June 2025. pp. 211-218
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Abstract

The structural, thermal, and electrical characteristics of the superconducting Bi2Ba2Ca2Cu3O10+δ compound are the main subjects of this work. The solid-state reaction (SSR) method was used to prepare the samples. The samples were placed in a furnace and heated at 820 °C for 70 hours at a heating rate of 5 °C/min. X-ray diffraction (XRD) studies were then performed on the prepared samples. XRD results revealed an orthorhombic crystal structure with variations in the lattice constants a, b, and c (where a = 5.416, b = 5.432, and c = 36.5 Å). The highest superconducting transition phase fraction (HTP%) was 78.76 %. The composition and morphology of the superconducting compound were studied using a scanning electron microscope (SEM). Images were taken at 20 kX magnification, where we observed nanoparticles with a size of 86.65 nm had formed. The elemental analysis of the sample was conducted with energy-dispersive X-ray spectroscopy (EDS), and the results showed the presence of different elements and their proportions for each sample. Thermal conductivity was also measured and it was found that the sample conductivity increased with increasing temperature. The electrical resistivity was examined, and it was observed that the resistivity decreased as the sample was cooled. The results showed that the highest initial critical temperature was 131 K, while the zero critical temperature was 114 K.

Keywords
superconducting
solid-state reaction
structural
thermal
and electrical properties
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Information
  • Publisher :Materials Research Society of Korea
  • Publisher(Ko) :한국재료학회
  • Journal Title :Korean Journal of Materials Research
  • Journal Title(Ko) :한국재료학회지
  • Volume : 35
  • No :6
  • Pages :211-218
  • Received Date : 2025-05-10
  • Revised Date : 2025-06-14
  • Accepted Date : 2025-06-16
  • DOI :https://doi.org/10.3740/MRSK.2025.35.6.211
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