PROPERTIES OF HIGH-QUALITY YBCO SUPERCONDUCTOR WITH ENHANCED Tc = 98 K: A COMPREHENSIVE ANALYSIS
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This study presents a detailed investigation of the structural, spectroscopic, and transport properties of a high-purity Yttrium Barium Copper Oxide (YBa2Cu3O7−δ, YBCO) sample that exhibits a critical temperature (Tc) of 98 K. By employing X-ray diffraction (XRD), Raman spectroscopy, and resistivity measurements, the work demonstrates how optimal synthesis and precise control of oxygen stoichiometry significantly enhance superconducting performance. The orthorhombic structure with low lattice strain and high phase purity was verified through Whole Pattern Profile Fitting (WPPF). Raman spectra confirmed characteristic vibrational modes related to Cu–O and Ba–O bonds, indicating well-ordered oxygen arrangement. Electrical characterization via a four-probe method revealed a sharp superconducting transition with a narrow width (ΔT ≈ 5 K). These findings reinforce the importance of structural and chemical precision in optimizing the properties of high-temperature superconductors.
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