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Underscreening is a collective term for charge correlations in electrolytes decaying slower than the Debye length. Anomalous underscreening refers to phenomenology that cannot be attributed alone to steric interactions. Experiments with…

Soft Condensed Matter · Physics 2023-03-13 Andreas Härtel , Moritz Bültmann , Fabian Coupette

The electrostatic screening length predicted by Debye-H\"uckel theory decreases with increasing ionic strength, but recent experiments have found that the screening length can instead increase in concentrated electrolytes. This phenomenon,…

Soft Condensed Matter · Physics 2021-10-13 Emily Krucker-Velasquez , James W. Swan

According to classical electrolyte theories interactions in dilute (low ion density) electrolytes decay exponentially with distance, with the Debye screening length the characteristic length-scale. This decay length decreases monotonically…

Soft Condensed Matter · Physics 2016-07-15 Alexander M. Smith , Alpha A. Lee , Susan Perkin

There is considerable debate about anomalous underscreening in highly concentrated electrolytes: While surface force apparatus (SFA) measurements have confirmed anomalously long screening lengths, so far they have not yet been detected in…

Recent experiments and a series of subsequent theoretical studies suggest the occurrence of universal underscreening in highly concentrated electrolyte solutions. We performed a set of systematic Atomic Force Spectroscopy measurements for…

Screening of a surface charge by electrolyte and the resulting interaction energy between charged objects is of fundamental importance in scenarios from bio-molecular interactions to energy storage. The conventional wisdom is that the…

Chemical Physics · Physics 2017-01-30 Alpha A. Lee , Carla Perez-Martinez , Alexander M. Smith , Susan Perkin

Polycrystalline solids can exhibit material properties that differ significantly from those of equivalent single-crystal samples, in part, because of a spontaneous redistribution of mobile point defects into so-called space-charge regions…

The classical Debye-Huckel (DH) theory clearly accounts for the origin of screening in electrolyte solutions and works rather well for dilute electrolyte solutions. While the Debye screening length decreases with the ion concentration and…

Soft Condensed Matter · Physics 2019-10-30 Ram M. Adar , Samuel A. Safran , Haim Diamant , David Andelman

The screening properties of fullerene molecules are described by means of a continuum model which uses the electronic wavefunctions of planar graphite as a starting point. The long distance behavior of the system gives rise to a…

Condensed Matter · Physics 2015-06-25 J. Gonzalez , F. Guinea , M. A. H. Vozmediano

The concept of mechanical screening is widely applied in solid-state systems. Examples include nucleation of defects in crystalline materials, scars and pleats in curved crystals, wrinkles in strongly confined thin sheets, and…

Disordered Systems and Neural Networks · Physics 2022-09-14 Chandana Mondal , Michael Moshe , Itamar Procaccia , Saikat Roy , Jin Shang , Jie Zhang

We present a scaling view of underscreening observed in salt solutions in the range of concentrations greater than about 1M, in which the screening length increases with concentration. The system consists of hydrated clusters of positive…

Soft Condensed Matter · Physics 2023-08-22 Samuel Safran , Philip Pincus

The elusive presence of an anomalously increasing screening length at high ionic concentrations hampers a complete picture of interactions in electrolytes. Theories which extend the diluted Debye-Huckel framework to higher concentrations…

Soft Condensed Matter · Physics 2025-09-01 Ioannis Skarmoutsos , Stefano Mossa

In many concentrated alloys of current interest, the observation of diffuse superlattice intensities by transmission electron microscopy has been attributed to chemical short-range order. We briefly review these findings and comment on the…

Materials Science · Physics 2023-08-23 Flynn Walsh , Mingwei Zhang , Robert O. Ritchie , Andrew M. Minor , Mark Asta

We use molecular dynamics simulations of the primitive model of electrolytes to study the ionic structure in aqueous monovalent electrolyte solutions confined by charged planar interfaces over a wide range of electrolyte concentration,…

Soft Condensed Matter · Physics 2020-09-08 Nasim Anousheh , Francisco J. Solis , Vikram Jadhao

Amorphous solids appear to react elastically to small external strains, but in contrast to ideal elastic media, plastic responses abound immediately, at any value of the strain. Such plastic responses are quasi-localized in nature, with the…

Disordered Systems and Neural Networks · Physics 2021-09-01 Anaël Lemaître , Chandana Mondal , Michael Moshe , Itamar Procaccia , Saikat Roy , Keren Screiber-Reém

Objective: Imbalances of the electrolyte concentration levels in the body can lead to catastrophic consequences, but accurate and accessible measurements could improve patient outcomes. While blood tests provide accurate measurements, they…

Previous experimental reports of long-range interactions in ionic liquids (ILs) stand in contradiction with theoretical predictions and numerical simulations. To provide insights into the literature discrepancies regarding the experimental…

Soft Condensed Matter · Physics 2026-03-24 Benjamin Cross , Léo Garcia , Elisabeth Charlaix , Patrick Kékicheff

The interaction between charged objects in an electrolyte solution is a fundamental question in soft matter physics. It is well-known that the electrostatic contribution to the interaction energy decays exponentially with object separation.…

Soft Condensed Matter · Physics 2017-08-02 Alpha A. Lee , Carla Perez-Martinez , Alexander M. Smith , Susan Perkin

A numerical study within the framework of the Poisson-Nernst-Planck equations is conducted to investigate electrostatic screening of charged bio-molecules within synthetic pores having diameters of at least 10 Debye lengths. We show that…

Biological Physics · Physics 2009-11-13 Yang Liu , Jon Sauer , Robert Dutton

Understanding the electrical double layer (EDL), i.e, the distribution of electrolyte at an electrified interface, in concentrated electrolytes is important for various technologies, such as supercapacitors, batteries and electrocatalysis.…

Soft Condensed Matter · Physics 2026-05-01 Zachary A. H. Goodwin
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