Tantalum as a base material for superconducting integrated circuits
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Quantum Physics arXiv:2606.13750 (quant-ph) [Submitted on 11 Jun 2026] Title:Tantalum as a base material for superconducting integrated circuits Authors:Evgeniy V. Zikiy, Nikita S. Smirnov, Stanislav A. Kotenkov, Ilya A. Stepanov, Julia A. Agafonova, Daria A. Moskaleva, Aleksei R. Matanin, Anton I. Ivanov, Dmitry O. Moskalev, Julia A. Kurochkina, Aleksander V. Andriyash, Ilya A. Rodionov View a PDF of the paper titled Tantalum as a base material for superconducting integrated circuits, by Evgeniy V. Zikiy and 10 other authors View PDF Abstract:The performance of superconducting integrated circuits for quantum applications is fundamentally limited by material-related losses. Tantalum, as an emerging material for next-generation quantum circuits, has attracted considerable attention in recent years after demonstrating breakthrough performance in both superconducting microwave resonators and qubits. Concurrently, a growing body of work is devoted to the operation of tantalum-based circuits and related fabrication techniques. This interest is further stimulated by tantalum thin films polymorphism resulting in a variety of its crystalline structure, superconducting properties, coherence, etc. Furthermore, tantalum circuits exhibit distinctive features in cryogenic experiments, which have not been observed in aluminum- or niobium-based ones. In this review, we summarize the recent research of tantalum thin films growth and phase selection mechanisms on various substrates, key aspects of fabrication and performance of superconducting circuit, including a material first-principles theoretical study. In conclusion, we address a number of open issues, including the role of \b{eta}-phase impurities, the effect of hydrofluoric acid solutions on chain characteristics, and the anomalous behavior of {\alpha}-tantalum chains at cryogenic temperatures. Comments: Subjects: Quantum Physics (quant-ph); Materials Science (cond-mat.mtrl-sci) Cite as: arXiv:2606.13750 [quant-ph] (or arXiv:2606.13750v1 [quant-ph] for this version) https://doi.org/10.48550/arXiv.2606.13750 Focus to learn more arXiv-issued DOI via DataCite Submission history From: Evgeniy Zikiy [view email] [v1] Thu, 11 Jun 2026 15:20:40 UTC (1,527 KB) Full-text links: Access Paper: View a PDF of the paper titled Tantalum as a base material for superconducting integrated circuits, by Evgeniy V. Zikiy and 10 other authorsView PDF view license Current browse context: quant-ph new | recent | 2026-06 Change to browse by: cond-mat cond-mat.mtrl-sci References & Citations INSPIRE HEP NASA ADSGoogle Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... Data provided by: Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer (What is the Explorer?) Connected Papers Toggle Connected Papers (What is Connected Papers?) Litmaps Toggle Litmaps (What is Litmaps?) scite.ai Toggle scite Smart Citations (What are Smart Citations?) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv (What is alphaXiv?) Links to Code Toggle CatalyzeX Code Finder for Papers (What is CatalyzeX?) DagsHub Toggle DagsHub (What is DagsHub?) GotitPub Toggle Gotit.pub (What is GotitPub?) Huggingface Toggle Hugging Face (What is Huggingface?) ScienceCast Toggle ScienceCast (What is ScienceCast?) Demos Demos Replicate Toggle Replicate (What is Replicate?) Spaces Toggle Hugging Face Spaces (What is Spaces?) Spaces Toggle TXYZ.AI (What is TXYZ.AI?) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower (What are Influence Flowers?) Core recommender toggle CORE Recommender (What is CORE?) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs. Which authors of this paper are endorsers? | Disable MathJax (What is MathJax?)