The nonlocal dielectric response of water in nanoconfinement

Abstract

Recent experiments reporting a very low dielectric permittivity for nanoconfined water have renewed the interest to the structure and dielectric properties of water in narrow gaps. Here, we describe such systems with a minimal Landau-Ginzburg field-theory composed of a nonlocal bulk-determined term and a local water-surface interaction term. We show how the interplay between the boundary conditions and intrinsic bulk correlations encodes dielectric properties of confined water. Our theoretical analysis is supported by molecular dynamics simulations and comparison with the experimental data.

5 pages, 4 figures and a 14-page supplemental material

References in corpus (3)

• Canonical sampling through velocity-rescaling
• Isothermal-isobaric molecular dynamics using stochastic velocity rescaling
• Water under extreme confinement in graphene: Oscillatory dynamics, structure, and hydration pressure explained as a function of the confinement width

Cited by in corpus (11)

• Ion specificity of confined ion-water structuring and nanoscale surface forces in clays
• A comprehensive continuum theory of structured liquids
• Ion Solvation in Dipolar Poisson models in a dual view
• Continuum theories of structured dielectrics
• Coupled interactions at the ionic graphene/water interface
• Redefining the dielectric response of nanoconfined liquids: insights from water
• Probing Water-Electrified Electrode interfaces: Insights from Au and Pd
• Static Dielectric Permittivity Profiles and Coarse-graining Approaches for Water in Graphene Slit Pores
• Broken Symmetries in Quasi-2D Charged Systems via Negative Dielectric Confinement
• Polar Liquids at Charged Interfaces: A Dipolar Shell Theory
• First-Principles Nanocapacitor Simulations of the Optical Dielectric Constant in Water Ice