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 discuss the electronic structure, lattice dynamics and electron-phononinteraction of newly discovered superconductor LaO$_{0.5}$F$_{0.5}$BiS$_{2}$using density functional based calculations. A strong Fermi surface nesting at$\mathbf{k}$=($\pi $,$\pi $,0) suggests a proximity to charge density waveinstability and leads to imaginary harmonic phonons at this $\mathbf{k}$ pointassociated with in-plane displacements of S atoms. Total energy analysisresolves only a shallow double-well potential well preventing the appearance ofstatic long-range order. Both harmonic and anharmonic contributions toelectron-phonon coupling are evaluated and give a total coupling constant$\lambda \simeq 0.85$ prompting this material to be a conventionalsuperconductor contrary to structurally similar FeAs materials.

physical review. b, condensed matter and materials physics

Density-functional calculations of the electronic structure and lattice  dynamics of superconducting LaO$_{0.5}$F$_{0.5}$BiS$_{2}$: Evidence for an  electron-phonon interaction near the charge-density-wave instability