Experimental demonstration of superconducting critical temperature increase in electromagnetic metamaterials

ORAL

Abstract

A recent proposal that the metamaterial approach to dielectric response engineering may increase the critical temperature of a composite superconductor-dielectric metamaterial has been tested in experiments with compressed mixtures of tin and barium titanate nanoparticles of varying composition. An increase of the critical temperature of the order of 0.15 K compared to bulk tin has been observed for 40{\%} volume fraction of barium titanate nanoparticles. Similar results were also obtained with compressed mixtures of tin and strontium titanate nanoparticles.

*This work was supported in part by NSF grant DMR-1104676 at Towson and AFOSR grant FA9550-09-1-0603 at Maryland.

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Authors

  • Vera Smolyaninova

    • Towson University

  • Bradley Yost

    • Towson University

  • Kathryn Zander

    • Towson University

  • Thomas Gresock

    • Towson University

  • Mike Osofsky

    • Naval Research Laboratory
    • NRL
    • Naval Research Lab

  • Heungsoo Kim

    • NRL

  • Shanta Saha

    • University of Maryland, College Park
    • University of Maryland
    • Center for Nano Physics and Advanced Materials, Dept. of Physics, University of Maryland, College Park, Maryland

  • Richard Greene

    • University of Maryland

  • Igor Smolyaninov

    • University of Maryland