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

We study thermal transport through Pt nanowires that bridge planar contactsas a function of wire length and vibrational frequency of the contacts. Whenphonons in the contacts have lower average frequencies than those in the wiresthermal transport occurs under conditions away from local equilibrium withlow-frequency phonons experiencing a higher thermal gradient thanhigh-frequency ones. This results in a size-dependent increase in the effectivethermal conductivity of the wire with decreasing vibrational frequencies of thecontacts. The interfacial resistivity when heat flows from the wire to thecontact is also size-dependent and has the same physical origin in the lack offull equilibration in short nanowires. We develop a model based on a 1D atomicchain that captures the salient physics of the MD results.

Phonon thermal transport outside of local equilibrium in nanowires via molecular dynamics