Role of surface states in the Casimir force between semiconducting films

TL;DR

This study uses first-principles calculations to show that surface states significantly influence the Casimir force between nanometric silicon films, highlighting the importance of surface atomic configuration.

Contribution

It provides new insights into how surface states affect the Casimir force in semiconducting films through detailed first-principles analysis.

Findings

Surface states markedly alter the Casimir force.

Surface atomic configuration impacts force magnitude.

Surface effects are crucial at nanometric scales.

Abstract

We present results of first principle calculations of the Casimir force between Si films of nanometric size, which show that it depends significantly upon the configuration of the surface atoms, and give evidence of the importance of surface states.