Broken Symmetries in Quasi-2D Charged Systems via Negative Dielectric Confinement
arXiv:2207.04687 · doi:10.1063/5.0214523
Abstract
We report spontaneous symmetry breaking (SSB) phenomena in symmetrically charged binary particle systems under planar nanoconfinement with negative dielectric constants.The SSB is triggered via the dielectric confinement effect, without any external fields. The mechanism of SSB is found to be caused by the strong polarization field enhanced by nanoconfinement, giving rise to charge/field oscillations in the transverse directions. Interestingly, dielectric contrast can even determine the degree of SSB in transverse and longitudinal dimensions, forming charge-separated interfacial liquids and clusters on square lattices. Furthermore, we analytically show that the formed lattice constant is determined by the dielectric mismatch and the length scale of confinement, which is validated via molecular dynamics simulations. The novel broken symmetry mechanism may provide new insights in the study of quasi-2D systems and the design of future nanodevices.
arXiv comment7 pages, 4 figures
References in corpus (15)
- Electrostatics in Periodic Slab Geometries I
- Electrostatics in Periodic Slab Geometries II
- Collisionless relaxation in non-neutral plasmas
- Simulation of Charged Systems in Heterogeneous Dielectric Media via a True Energy Functional
- Effect of Image Forces on Polyelectrolyte Adsorption at a Charged Surface
- Quasi-stationary states in the self-gravitating sheet model
- The nonlocal dielectric response of water in nanoconfinement
- Computing Coulomb Interaction in Inhomogeneous Dielectric Media via a Local Electrostatics Lattice Algorithm
- Simulations of Coulomb systems confined by polarizable surfaces using periodic Green functions
- Dielectric modulation of ion transport near interfaces
- Kosterlitz-Thouless and Potts transitions in a generalized XY model
- A fast spectral method for electrostatics in doubly-periodic slit channels
- Non-equilibrium Statistical Mechanics of Two-dimensional Vortices
- Plasma-Like Negative Capacitance in Nano-Colloids
- Negative static permittivity and violation of Kramers-Kronig relations in quasi-two-dimensional crystals