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

Electron-electron ($e$-$e$) and electron-phonon ($e$-ph) interactions arechallenging to describe in correlated materials, where their joint effectsgovern unconventional transport, phase transitions, and superconductivity. Herewe combine first-principles $e$-ph calculations with dynamical mean fieldtheory (DMFT) as a step toward a unified description of $e$-$e$ and $e$-phinteractions in correlated materials. We compute the $e$-ph self-energy usingthe DMFT electron Green's function, and combine it with the $e$-$e$ self-energyfrom DMFT to obtain a Green's function including both interactions. Thisapproach captures the renormalization of quasiparticle dispersion and spectralweight on equal footing. Using our method, we study the $e$-ph and $e$-$e$contributions to the resistivity and spectral functions in the correlated metalSr$_2$RuO$_4$. In this material, our results show that $e$-$e$ interactionsdominate transport and spectral broadening in the temperature range we study(50$-$310~K), while $e$-ph interactions are relatively weak and account foronly $\sim$10\% of the experimental resistivity. We also compute effectivescattering rates, and find that the $e$-$e$ interactions result in scatteringseveral times greater than the Planckian value $k_BT$, whereas $e$-phinteractions are associated with scattering rates lower than $k_BT$. Our workdemonstrates a first-principles approach to combine electron dynamicalcorrelations from DMFT with $e$-ph interactions in a consistent way, advancingquantitative studies of correlated materials.

Combining Electron-Phonon and Dynamical Mean-Field Theory Calculations of Correlated Materials: Transport in the Correlated Metal Sr$_2$RuO$_4$