2025/12/06 by Singh, Aditya, Febvrier, Arnaud le, Honnali, Sanath Kumar +5
Engineering · Materials Science · #2D Materials and Applications #Boron and Carbon Nanomaterials Research #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Metal and Thin Film Mechanics #Superconductivity (cond-mat.supr-con)
paper · doi:10.48550/arxiv.2512.06477
openalex publication_date 2025/12/06 · openalex created_date 2025/12/10 · openalex updated_date 2026/07/28
Transition Metal Nitrides are a versatile class of materials, combining chemical robustness, high hardness, and superconducting behaviour with critical temperatures between 2 to 10 K. While several binary TMNs have been explored, superconductivity in stoichiometric W2N has remained largely unexplored. Here, we report on superconducting thin films of stoichiometric W2N, demonstrating a distinctly high upper critical field of 8.5 T, uncommon among binary TMNs. This robust superconducting response under high magnetic fields highlights the technological relevance of W2N for integrated quantum and cryogenic electronic platforms. Overall, these results position stoichiometric W2N as a promising addition to the TMN superconducting landscape, opening new avenues for functional materials design based on chemically stable and mechanically resilient nitrides.