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 Tools annual

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 monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

The nature of the superconducting pairing state in the pristine phase of acompressed kagome metal CsV$_3$Sb$_5$ under pressure is studied by theMigdal-Eliashberg formalism and density-functional theory calculations. We findthat the superconducting gap distribution driven by electron-phonon coupling isnodeless and anisotropic. It is revealed that the hybridized V 3$d$ and Sb 5$p$orbitals are strongly coupled to the V-V bond-stretching and V-Sb bond-bendingphonon modes, giving rise to a wide spread of superconducting gap depending onits associated Fermi-surface sheets and momentum. Specifically, thesuperconducting gaps associated with V 3$d_{xy,x^2-y^2,z^2}$ and 3$d_{xz,yz}$orbitals are larger in their average magnitude and more widely spread comparedto that associated with the Sb 5$p_z$ orbital. Our findings demonstrate thatthe superconductivity of compressed CsV$_3$Sb$_5$ can be explained by theanisotropic multiband pairing mechanism with conventional phonon-mediated$s$-wave symmetry, evidenced by recent experimental observations under pressureas well as at ambient pressure.

Phonon-Mediated ${\bf S}$-Wave Superconductivity in the Kagome Metal CsV$_3$Sb$_5$ under Pressure