Hybrid acousto-electromagnetic metamaterial superconductors

Igor I. Smolyaninov, Vera N. Smolyaninova · Physica C 577, 1353730 (2020) · 2020

A hybrid acousto-electromagnetic hyperbolic metamaterial superconductor concept is proposed to enhance superconducting properties via engineered broadband electron-phonon spectral density.

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Plain English summary

The work discusses a metamaterial-superconductor strategy where changing a metamaterial’s frequency-dependent dielectric response can raise the superconducting critical temperature Tc. It then extends the idea by proposing “hybrid acousto-electromagnetic hyperbolic metamaterial superconductors.” The key claim is that broadband engineered divergence in the Eliashberg electron-phonon spectral density could strongly enhance superconducting behavior. A specific hybrid metamaterial design is proposed as a LSCO/STO nano-alloy, based on the developed approach.

Why this matters

Introducing a hybrid acousto-electromagnetic hyperbolic metamaterial superconductor concept that targets broadband divergency in the Eliashberg electron-phonon spectral density, extending prior electromagnetic metamaterial Tc-enhancement approaches. No evidence in the abstract about prototypes, field testing, or commercialization; the approach is presented as a concept/proposal.

Key findings

  • Metamaterial engineering of the frequency-dependent dielectric response can drastically increase Tc in composite metamaterial superconductors (as stated in the abstract).
  • A hybrid acousto-electromagnetic hyperbolic metamaterial superconductor concept is introduced to further enhance superconducting properties.
  • The proposed enhancement mechanism relies on artificially engineered broadband divergency of the Eliashberg electron-phonon spectral density function.
  • A hybrid acousto-electromagnetic metamaterial is proposed using an LSCO/STO nano-alloy.

Limitations

The abstract uses “projected” and “proposed” language and does not specify experimental validation, device performance metrics, or fabrication/operational constraints for the LSCO/STO nano-alloy design.

Publication

Publisher
arXiv
Journal
Physica C 577, 1353730 (2020)
Publication date
May 15, 2020
Research type
Paper
arXiv
2006.13671
Access
open

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