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We study the behavior of negatively charged colloids with two positively charged polar caps close to a planar patterned surface. The competition between the different anisotropic components of the particle-particle interaction patterns is…

Soft Condensed Matter · Physics 2018-09-25 Emanuele Locatelli , Emanuela Bianchi

By taking account of the electric-field-induced charge screening, a self-consistent calculation within the framework of the tight-binding approach is employed to obtain the electronic band structure of gated multilayer phosphorene and the…

Mesoscale and Nanoscale Physics · Physics 2018-05-09 L. L. Li , B. Partoens , F. M. Peeters

Recently synthesized colloids and biological systems such as proteins, viruses and monoclonal antibodies are heterogeneously charged, i.e., different regions of their surfaces carry different amount of positive or negative charge. Because…

Computational Physics · Physics 2024-06-24 Daniele Notarmuzi , Emanuela Bianchi

Using super-heterodyne Doppler velocimetry with multiple scattering correction, we extend the opti-cally accessible range of concentrations in experiments on colloidal electro-kinetics. We here meas-ured the electro-phoretic mobility and…

Soft Condensed Matter · Physics 2020-07-15 Denis Botin , Felix Carrique , Emilio Ruiz-Reina , Thomas Palberg

Charge regulation is an important aspect of electrostatics in biological and colloidal systems, where the charges are generally not fixed, but depend on the environmental variables. Here, we analyze the charge regulation mechanism in…

Soft Condensed Matter · Physics 2018-08-01 Anže Lošdorfer Božič , Rudolf Podgornik

Pressure-volume-temperature data, along with dielectric relaxation measurements, are reported for a series of polychlorinated biphenyls (PCB), differing in the number of chlorine atoms on their phenyl rings. Analysis of the results reveals…

Soft Condensed Matter · Physics 2009-11-11 C. M. Roland , R. Casalini

Herein, we describe new methods to produce colloidal particle chains of three stiffness regimes that can be observed on a single-particle level, that is, on the level of the monomers that make up the chain; the chains can even be observed…

Sequentially-built random sphere-packings have been numerically studied in the packing fraction interval $0.329 < \gamma < 0.586$. For that purpose fast running geometrical algorithms have been designed in order to build about 300…

Soft Condensed Matter · Physics 2015-06-22 Marc Bletry , Jean Bletry

Beams of light with a large topological charge significantly change their spatial structure when they are focused strongly. Physically, it can be explained by an emerging electromagnetic field component in the direction of propagation,…

Quantum Physics · Physics 2018-06-08 Mario Krenn , Anton Zeilinger

Doping twisted bilayer graphene away from charge neutrality leads to an enormous buildup of charge inhomogeneities within each Moir\'{e} unit cell. Here we show, using unbiased real-space self-consistent Hartree calculations on a relaxed…

Strongly Correlated Electrons · Physics 2019-11-13 Louk Rademaker , Dmitry A. Abanin , Paula Mellado

Astrophysical current layers, e.g., in pulsar winds, can be electrically charged, while the plasma is charge-symmetric, $e^\pm$. Using PIC simulations, we investigate dynamics and plasmoid formation (tearing instability) in charged…

High Energy Astrophysical Phenomena · Physics 2026-05-08 Maxim Lyutikov

Insulating particles can become highly electrified during powder handling, volcanic eruptions, and the wind-blown transport of dust, sand, and snow. Measurements in these granular systems have found that smaller particles generally charge…

Statistical Mechanics · Physics 2009-05-22 Jasper F. Kok , Daniel J. Lacks

The charge transfer compound (BEDT-TTF)$_2$Ag(CF$_3$)$_4$(TCE) crystallizes in three polymorphs with different alternating layers: While a phase with a $\kappa$ packing motif has a low superconducting transition temperature of $T_c=2.6$ K,…

Strongly Correlated Electrons · Physics 2015-06-18 Michaela Altmeyer , Roser Valenti , Harald O. Jeschke

Charge-density wave order is now understood to be a widespread feature of underdoped cuprate high-temperature superconductors, although its origins remain unclear. While experiments suggest that the charge-ordering wavevector is determined…

Strongly Correlated Electrons · Physics 2020-09-21 S. Banerjee , W. A. Atkinson , A. P. Kampf

Triboelectric nanogenerators (TENGs) are an emerging mechanical energy harvesting technology that was recently demonstrated. Due to their flexibility, they can be fabricated in various configurations and consequently have a large number of…

Mesoscale and Nanoscale Physics · Physics 2018-03-28 A. Gomes , C. Rodrigues , A. M. Pereira , J. Ventura

The surface composition of charged Lennard-Jones clusters A$_N^{n+}$, composed of N particles (55 \leq N \leq 1169) among which n are positively charged with charge q, thus having a net total charge Q = nq, is investigated by Monte Carlo…

Atomic and Molecular Clusters · Physics 2012-05-16 David A. Bonhommeau , Riccardo Spezia , Marie-Pierre Gaigeot

Space charge effects can significantly degrade charge collection in organic photovoltaics (OPVs), especially in thick-film devices. The two main causes of space charge are doping and imbalanced transport. Although these are completely…

Applied Physics · Physics 2020-04-22 Sebastian Wilken , Oskar J. Sandberg , Dorothea Scheunemann , Ronald Österbacka

Single layer Pb on top of (111) surfaces of group IV semiconductors hosts charge density wave and superconductivity depending on the coverage and on the substrate. These systems are normally considered to be experimental realizations of…

Strongly Correlated Electrons · Physics 2021-07-16 Cesare Tresca , Matteo Calandra

Charge transport in materials has an impact on a wide range of devices based on semiconductor, battery or superconductor technology. Charge transport in sliding Charge Density Waves (CDW) differs from all others in that the atomic lattice…

Apparent recombination orders exceeding the value of two expected for bimolecular recombination have been reported for organic solar cells in various publications. Two prominent explanations are bimolecular losses with a carrier…

Soft Condensed Matter · Physics 2012-08-23 D. Rauh , C. Deibel , V. Dyakonov