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Enhancing plasmonic superconductivity in layered materials via dynamical Coulomb engineering.

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Summary

We introduce dynamical screening, or "bosonic engineering," to tailor bosonic modes in van der Waals materials. This method significantly enhances superconducting critical temperatures by optimizing plasmon modes for stronger pairing interactions.

Keywords:
Materials scienceNanoscience and technologyOptics and photonicsPhysics

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Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Quantum Materials

Background:

  • Atomically thin van der Waals materials possess tunable correlation properties via static Coulomb screening.
  • Understanding and controlling many-body properties in these materials is crucial for developing novel electronic devices.
  • Plasmon-mediated superconductivity is a promising area for achieving high critical temperatures.

Purpose of the Study:

  • To introduce tunable dynamical screening as a novel method for optimizing many-body properties.
  • To investigate the enhancement of plasmon-induced superconducting critical temperatures in layered superconductors.
  • To determine the optimal screening environment for maximizing critical temperatures.

Main Methods:

  • Development and application of tunable dynamical screening, termed 'bosonic engineering'.
  • Analysis of plasmon modes and their hybridization in layered superconductors within metallic environments.
  • Theoretical determination of optimal screening parameters to maximize superconducting critical temperatures.

Main Results:

  • Bosonic engineering enhances plasmon-induced superconducting critical temperatures by up to an order of magnitude.
  • Formation of interlayer hybridized plasmon modes leads to enhanced superconducting pairing strength.
  • Identification of optimal screening environment properties for maximizing critical temperatures.

Conclusions:

  • Tunable dynamical screening offers a powerful route to engineer bosonic modes and optimize many-body properties.
  • Bosonic engineering significantly boosts superconducting critical temperatures in layered superconductors.
  • This approach provides a pathway for experimental verification of plasmon-mediated superconductivity.