Visualizing screening in noble-metal clusters: static vs. dynamic - Archive ouverte HAL Access content directly
Journal Articles Physical Chemistry Chemical Physics Year : 2023

Visualizing screening in noble-metal clusters: static vs. dynamic

Abstract

The localized surface-plasmon resonance of metal nanoparticles and clusters corresponds to a collective charge oscillation of the quasi-free metal electrons. The polarization of the more localized d electrons opposes the overall polarization of the electron cloud and thus screens the surface plasmon. By contrast, a static electric external field is well screened, as even very small noble-metal clusters are highly metallic: the field inside is practically zero except for the effect of the Friedel-oscillation-like modulations which lead to small values of the polarization of the d electrons. In the present article, we present and compare representations of the induced densities (i) connected to the surface-plasmon resonance and (ii) resulting from an external static electric field. The two cases allow for an intuitive understanding of the differences between the dynamic and the static screening.
Fichier principal
Vignette du fichier
PCCP_sinha-roy_dynamic_vs_static_polarization_22.pdf (3.4 Mo) Télécharger le fichier
Origin : Publication funded by an institution

Dates and versions

hal-03935113 , version 1 (11-01-2023)

Identifiers

Cite

Rajarshi Sinha-Roy, Pablo García-González, Xóchitl López-Lozano, Hans-Christian Weissker. Visualizing screening in noble-metal clusters: static vs. dynamic. Physical Chemistry Chemical Physics, 2023, 25 (3), pp.2075-2083. ⟨10.1039/D2CP04316E⟩. ⟨hal-03935113⟩
63 View
16 Download

Altmetric

Share

Gmail Facebook X LinkedIn More