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

An interacting electron-phonon system is considered within the ExtendedHolstein model at strong coupling regime and nonadiabatic approximation. It isassumed that screening of an electron-phonon interaction is due to the excesselectrons in a lattice. An influence of the screening on the mass and opticalconductivity of a lattice polarons is studied. A more general form Yukawa-typeelectron-phonon interaction potential potential is accepted and correspondingforces are derived in a lattice. It is emphasized that the screening effect ismore pronounced at the values of screening radius comparable with a latticeconstant. It is shown that the mass of a lattice polaron obtained usingYukawa-type electron-phonon interaction potential is less renormalized thanthose of the early studied works at the same screening regime. Opticalconductivity of lattice polarons is calculated at different screening regimes.The screening lowers the value of energy that corresponds to the peak of theoptical conductivity curve. The shift (lowering) is more pronounced at smallvalues of screening radius too. The factors that give rise to this shift isbriefly discussed.

Effect of screening of the electron-phonon interaction on mass renormalization and optical conductivity of the Extended Holstein model polarons