English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Thermal transport in nanoribbon based nanostructures is critical to advancingits applications. Wave effects of phonons can give rise to controllability ofheat conduction in nanostructures beyond that by particle scattering. In thispaper, by introducing pillars to form structural resonance, we systematicallystudied the thermal conductivity of graphene nanoribbon based phononicmetamaterials (GNPM) through non-equilibrium molecular dynamical simulation.Interestingly, it is found that the thermal conductivity of GNPM is counterintuitively enhanced by isotope engineering, which is strong contrast to thecommon notion that isotope engineering reduces thermal conductivity.Furthermode analysis and atomic Green function calculation reveal that the unexpectedincreasing in thermal conductivity originates from the breaking of the resonanthybridization wave effect between the resonant modes and the propagating modesinduced by isotope engineering. Besides, factors including the system width andpillar height can also efficiently tune the thermal conductivity of GNPM. Thisabnormal mechanism provides a new dimension to manipulate phonon transport innanoribbon based nanostructures through wave effect.

Unexpected Thermal Conductivity Enhancement in Pillared Graphene Nanoribbon with Isotopic Resonance