Core Viewpoint - The recent research on Ruddlesden-Popper structured double-layer nickelate La3Ni2O7 reveals its potential as a superconductor material, achieving a superconducting transition temperature (Tc) of approximately 80 K under pressures exceeding 14 GPa, while challenges remain in synthesizing high-quality single crystals without high-pressure oxygen growth conditions [2][4]. Group 1 - A study published in the journal Nature reports the observation of bulk superconductivity up to 96 K in pressurized nickelate single crystals synthesized at ambient pressure, breaking key limitations in the crystal growth of nickelate superconductors [4][9]. - The research team confirmed the high uniformity and excellent crystal quality of La2SmNi2O7-δ single crystals grown using a flux method, demonstrating clear bulk superconductivity, including zero-resistance phenomena at 21 GPa with a maximum onset Tc of 92 K and a maximum zero-resistance temperature of 73 K [7][9]. - The study indicates that both monoclinic and tetragonal crystal structures can support the superconductivity of the double-layer nickelate, with a correlation found between higher Tc under pressure and greater in-plane lattice distortion at ambient pressure [8][9]. Group 2 - The research provides effective pathways for achieving higher Tc in superconducting materials by elucidating the crystal structure characteristics of the superconducting state [9].

Core Viewpoint - The article discusses the advancements in superconductivity research, particularly focusing on the recent breakthrough achieved by a team from Southern University of Science and Technology, which has successfully demonstrated superconductivity in nickel-based materials at ambient pressure, surpassing the "McMillan limit" of 40 Kelvin [9][10]. Group 1: Importance of Superconductivity - Superconductivity allows for "zero resistance" electrical flow, which can significantly reduce energy loss during transmission, with global transmission losses estimated at 5%-10% of total electricity generation annually [7]. - Traditional conductive materials like copper and aluminum incur energy losses due to resistance, leading to inefficiencies in power systems, especially as demand for computing power increases [7]. - The application of superconducting materials can lead to substantial energy savings and efficiency improvements in various technologies, such as MRI machines and urban power grids [7][8]. Group 2: Recent Breakthroughs in Superconductivity - The discovery of high-temperature superconductors, such as copper-based and iron-based materials, has expanded the potential applications of superconductivity by allowing operation at higher temperatures [9]. - The recent achievement of nickel-based superconductivity at ambient pressure marks a significant milestone, potentially paving the way for further advancements in superconducting materials and their applications [9][10]. - This breakthrough is seen as a critical step towards achieving "room temperature superconductivity," which would revolutionize energy transmission and storage [10]. Group 3: Applications and Future Prospects - Superconductivity has diverse applications, including magnetic levitation for trains and quantum computing, which could lead to unprecedented computational speeds [10][11]. - The development of superconducting cables, such as those used in Shenzhen, demonstrates the practical benefits of superconductivity, including reduced transmission losses and increased capacity [8]. - The ongoing research in superconductivity is expected to bridge the gap between fundamental science and industrial transformation, enhancing various sectors [11].