Core Insights - A multi-institutional research team led by scientists from the University of California, Los Angeles has discovered that the thermal conductivity of the metal material θ-phase tantalum nitride reaches approximately 1100 watts per meter-kelvin, nearly three times that of copper or silver, setting a new record for metal thermal conductivity [1][2] - This breakthrough challenges over a century of traditional understanding regarding the thermal conductivity limits of metals and addresses the heat dissipation challenges faced by artificial intelligence (AI) technologies [1][2] Group 1: Material Properties - The thermal conductivity of θ-phase tantalum nitride is significantly higher than that of traditional metals, with copper at about 400 watts per meter-kelvin and silver at 429 watts per meter-kelvin [1] - The unique atomic structure of θ-phase tantalum nitride, where tantalum and nitrogen are arranged in a hexagonal lattice, greatly weakens the interaction between electrons and phonons, allowing heat to flow more freely [1][2] Group 2: Implications for Technology - The discovery marks a new phase in human understanding of metal heat transport, breaking the long-held belief that copper and silver represent the ceiling of metal thermal conductivity [2] - As AI technology rapidly advances, the increasing power consumption of chips is pushing heat dissipation needs to the limits of existing materials, making θ-phase tantalum nitride a promising high-performance alternative [2] - This material is expected to find widespread applications in microelectronics, data centers, aerospace, and quantum computing, all of which are heavily constrained by heat dissipation challenges [2]