Laser can be used to precisely and locally modify the properties of superconductors. Their crystal structure and charge distribution can be altered by applying focused energy, thus affecting their microstructure and electrical properties. This technique enables the design and development of new materials with enhanced performance for various applications. This paper focuses on the effect of laser irradiation on the thermal, structural, and electrical properties of the Bi1.9Sb0.1Ba1.9Y0.1Ca2Cu3O10+δ superconducting compound. Samples were exposed to heat for 48 h at 900 °C at a heating rate of 10 °C/min. X-ray diffraction (XRD) studies were performed and the diffraction results showed that all samples had a regular orthorhombic crystalline structure and that the lattice constants (a, b, c) changed with irradiation compared to the unirradiated sample. A significant increase in the c/a axis, lattice size high-temperature phase (HTP) was also observed after irradiation. The content of the high-temperature phase increased to 81.47 %. The topographical nature of the samples was examined using scanning electron microscopy (SEM), and a change in the formation of nanosized grains was found in the samples. Using an energy-dispersive X-ray spectroscopy (EDX) device, elemental analysis was performed to detect the presence of different elements and determine their proportions in each sample. The critical temperature was also determined. The results showed that when the sample was exposed to radiation, the highest critical temperature was 114 K.

Abstract
1. Introduction
2. Experimental Procedure
3. Results and Discussion
    3.1. Structural properties
    3.2. Thermal Properties
    3.3. Study of electrical properties
Acknowledgement
References
Author Information

• Laheeb Ahmed Mohammed(Department of Physics, College of Education for Pure Science (Ibn Al-Haitham), University of Baghdad, Baghdad 10001, Iraq)
• Kareem Ali Jasim(Department of Physics, College of Education for Pure Science (Ibn Al-Haitham), University of Baghdad, Baghdad 10001, Iraq) Corresponding author
• Nabaa Safaa Hamzah(Department of Physics, College of Education for Pure Science (Ibn Al-Haitham), University of Baghdad, Baghdad 10001, Iraq)
• Alaa Kadhim Shwyyea(Department of Physics, College of Science, University of Baghdad, Baghdad 10001, Iraq)