monolattéplasmons

Monolattéplasmons are a theoretical concept in condensed matter physics that describes collective oscillations of electrons confined to a very thin layer, specifically a monolayer, interacting with an underlying material, termed the "latte" layer, due to van der Waals forces. These plasmons are distinct from traditional plasmons, which typically involve bulk materials or interfaces between two distinct materials. The "mono" prefix signifies the single atomic or molecular layer in which the electron plasma is primarily localized. The interaction with the latte layer is crucial, as it influences the energy and propagation characteristics of these collective electronic excitations.

The theoretical framework for monolattéplasmons involves considering the dielectric environment provided by both the monolayer and the underlying substrate. The confinement to a monolayer leads to reduced dimensionality, which can significantly alter plasmon dispersion relations compared to their bulk counterparts. This confinement also makes them highly sensitive to external perturbations, such as the presence of adsorbates or changes in the surrounding environment. Research into monolattéplasmons aims to understand their fundamental properties and explore potential applications in areas like nanoscale sensing and optoelectronic devices. The precise nature and behavior of these phenomena are still subjects of ongoing theoretical and experimental investigation.