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Effects of Metamaterial Engineering on Properties of Ultrathin Layers of NbTiN

POSTER

Abstract

Application of the metamaterial dielectric function engineering is capable of enhancing superconducting properties in type I superconductors such as aluminum and tin, leading to the tripling of the critical temperature Tc in Al-Al2O3 epsilon near zero (ENZ) core-shell metamaterial superconductors. Similar effects have been observed in hyperbolic (superconductor/dielectric) metamaterials [1]. Here, we report on the effects of metamaterial dielectric function engineering on superconducting properties of ultrathin layers of NbTiN. NbTiN/AlN multilayers with varied number of layers and layer thicknesses were fabricated. Dielectric constants of these metamaterials were measured via polarization reflectometry will be reported. Correlation of the results of the transport measurements and the hyperbolic properties of the multilayers will be discussed.

[1] Vera N. Smolyaninova, et al., Sci. Rep. 6, 34140

Presenters

  • Jonathon Cartelli

    Department of Physics, Astronomy, and Geosciences, Towson University, Department of Physics Astronomy and Geosciences, Towson University

Authors

  • Jonathon Cartelli

    Department of Physics, Astronomy, and Geosciences, Towson University, Department of Physics Astronomy and Geosciences, Towson University

  • Will Korzi

    Department of Physics, Astronomy, and Geosciences, Towson University, Department of Physics Astronomy and Geosciences, Towson University

  • Anne-Marie Valente-Feliciano

    Jefferson Lab

  • Joseph Prestigiacomo

    United States Naval Research Laboratory

  • Michael Osofsky

    Naval Research Laboratory, United States Naval Research Laboratory, Naval Research Lab

  • Igor Smolyaninov

    Saltenna LLC

  • Vera N Smolyaninova

    Department of Physics, Astronomy, and Geosciences, Towson University, Department of Physics Astronomy and Geosciences, Towson University