Non-contact friction between nanostructures

Abstract

We calculate the van der Waals friction between two semi-infinite solids in normal relative motion and find a drastic difference in comparison with the parallel relative motion. The case of the good conductors is investigated in details both within the local optic approximation, and using a non-local optic dielectric approach. We show that the friction may increase by many order of magnitude when the surfaces are covered by adsorbates, or can support low-frequency surface plasmons. In this case the friction is determined by resonant photon tunneling between adsorbate vibrational modes, or surface plasmon modes. The theory is compared to atomic force microscope experimental data.

Published in PRB

References in corpus (3)

• Radiative heat transfer between nanostructures
• Theory of friction: contribution from fluctuating electromagnetic field
• Dissipative Van der Waals interaction between a small particle and a metal surface

Cited by in corpus (6)

• Effects of spatial dispersion in near-field radiative heat transfer between two parallel metallic surfaces
• Resonant photon tunneling enhancement of the radiative heat transfer
• Adsorbate induced enhancement of electrostatic non-contact friction
• Enhancement of noncontact friction between closely spaced bodies by two-dimensional systems
• Quantum field theory of the van der Waals friction
• Adsorbate vibrational modes enhancement of radiative heat transfer and van der Waals friction