Repulsion of polarized particles from two-dimensional materials

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)
307 Downloads (Pure)


Repulsion of nanoparticles, molecules, and atoms from surfaces can have important applications in nanomechanical devices, microfluidics, optical manipulation, and atom optics. Here, through the solution of a classical scattering problem, we show that a dipole source oscillating at a frequency ω can experience a robust and strong repulsive force when its near-field interacts with a two-dimensional material. As an example, the case of graphene is considered, showing that a broad bandwidth of repulsion can be obtained at frequencies for which propagation of plasmon modes is allowed 0< ω<(5/3)μc, where μc is the chemical potential tunable electrically or by chemical doping.

Original languageEnglish
Article number205401
JournalPhysical Review B
Issue number20
Publication statusPublished - 1 May 2018


Dive into the research topics of 'Repulsion of polarized particles from two-dimensional materials'. Together they form a unique fingerprint.

Cite this