Robust Superconductivity and High Upper Critical Fields in Epitaxial cubic W2N Thin Films
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arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866909947405533184 |
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| author | Singh, Aditya Febvrier, Arnaud le Honnali, Sanath Kumar Mishra, Abhisek Greczynski, Grzegorz Bedanta, Subhankar Eklund, Per Soni, Ajay |
| author_facet | Singh, Aditya Febvrier, Arnaud le Honnali, Sanath Kumar Mishra, Abhisek Greczynski, Grzegorz Bedanta, Subhankar Eklund, Per Soni, Ajay |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_06477 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Robust Superconductivity and High Upper Critical Fields in Epitaxial cubic W2N Thin Films Singh, Aditya Febvrier, Arnaud le Honnali, Sanath Kumar Mishra, Abhisek Greczynski, Grzegorz Bedanta, Subhankar Eklund, Per Soni, Ajay Superconductivity Materials Science 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. |
| title | Robust Superconductivity and High Upper Critical Fields in Epitaxial cubic W2N Thin Films |
| topic | Superconductivity Materials Science |
| url | https://arxiv.org/abs/2512.06477 |