Journal
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
Volume 565, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.physc.2019.1353511
Keywords
Superconductivity; Metamaterial; Tin
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Funding
- DARPA [W911NF-17-1-0348]
- ONR [N00014-18-1-2681, N00014-18-1-2653]
- National Science Foundation, Division of Materials Research [NSF DMR-1255156]
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Recent experiments have demonstrated that the superconducting critical temperature may be improved in various metamaterial superconductor geometries. Here, we present the results of a study of tin-based metamaterial superconductors in the epsilon-near-zero (ENZ) and hyperbolic metamaterial configurations. It was observed that T-c enhancement is significantly reduced when the metamaterial structural dimensions exceed 240 nm, the superconducting coherence length in pure tin.
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