Published Paper Details:

High-temperature superconductors (HTS) have emerged as pivotal materials in modern science and engineering due to their ability to conduct electricity without resistance at relatively higher temperatures compared to conventional superconductors. Since the discovery of cuprate superconductors in the late 1980s, materials such as YBa?Cu?O?-? (YBCO), BSCCO, and iron-based compounds have demonstrated critical temperatures well above the boiling point of liquid nitrogen, making them more viable for practical applications. This paper explores the theoretical foundations, material properties, and real-world uses of HTS, focusing on sectors such as energy transmission, magnetic levitation transport, medical imaging, and quantum computing. Through a detailed review of literature, analysis of technical data, and case studies, the research identifies both the transformative potential and the key challenges associated with HTS technologies. It highlights issues like material brittleness, fabrication complexity, and cryogenic cooling requirements, while also presenting current advancements in flux pinning, coated conductor technology, and scalable engineering solutions. The findings indicate that while widespread adoption remains constrained, on-going innovations are steadily bringing HTS systems closer to commercial viability, with profound implications for sustainable and high-performance technologies of the future.