Repulsive Casimir force between silicon dioxide and superconductor

TL;DR

This paper investigates the Casimir force between a superconductor and silicon dioxide with bromobenzene, revealing conditions for repulsion that could mitigate stiction in nanodevices.

Contribution

It demonstrates the possibility of achieving a repulsive Casimir force between specific materials with tunable parameters, advancing control over quantum fluctuation forces.

Findings

Casimir force is repulsive between BSCCO and SiO2 with bromobenzene.

Force magnitude varies with object thickness and temperature.

Potential applications in reducing stiction in nanotechnology.

Abstract

We have presented a detailed investigation of the Casimir interaction between the superconductor Bi2Sr2CaCu2O8+{\delta} (BSCCO) and silicon dioxide with the presence of bromobenzene in between. We found the dispersion force is repulsive and the magnitude of the force can be changed by varying the thickness of object and temperature. The repulsive force would provide a method to deal with the stiction problems and bring much meaningful from practical views.