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Charge transfer among individual atoms in a molecule is the key concept in the modern electronic theory of chemical bonding. In this work, we defined an atomic region between two atoms by Slater orbital exponents of valence electrons and…

化学物理 · 物理学 2017-03-21 Yong-U Ri , Young-Hui Pyon , Kye-Ryong Sin

In single particle imaging experiments, beams of individual nanoparticles are exposed to intense pulses of x-rays from free-electron lasers to record diffraction patterns of single, isolated molecules. The reconstruction for structure…

Absolute cross sections measured using electromagnetic devices to separate and detect heavy recoiling ions need to be corrected for charge state fractions. Accurate prediction of charge state distributions using theoretical models is not…

We investigate the charge density distribution in titanium dioxide, molecular titanium complexes and a variety of periodic titanium compounds using delocalization indices and Bader charge analysis. Our results are in agreement with previous…

材料科学 · 物理学 2022-01-26 Daniel Koch , Pavlo Golub , Sergei Manzhos

Equilibrium charge state distributions of stable 60Ni, 59Co, and 63Cu beams passing through a 1um thick Mo foil were measured at beam energies of 1.84 MeV/u, 2.09 MeV/u, and 2.11 MeV/u respectively. A 1-D position sensitive Parallel Grid…

We present a method for incorporating image-charge effects into the description of charge transport through molecular devices. A simple model allows us to calculate the adjustment of the transport levels, due to the polarization of the…

介观与纳米尺度物理 · 物理学 2015-11-23 C. J. O. Verzijl , J. A. Celis Gil , M. L. Perrin , D. Dulić , H. S. J. van der Zant , J. M. Thijssen

This paper presents measurements of charged-particle distributions sensitive to the properties of the underlying event in events containing a $Z$ boson decaying into a muon pair. The data were obtained using the ATLAS detector at the LHC in…

高能物理 - 实验 · 物理学 2019-12-02 ATLAS Collaboration

We present a method to measure electric-charge transport in high-energy nuclear collisions using a beam-energy scan of isobaric systems. Comparing collisions of nuclei with identical mass number but different atomic number allows the charge…

Based on geometric phases of Bloch electrons computed from first-principles, we propose a scheme for unambiguous partitioning of charge in matter, derivable directly from the Kohn-Sham states. Generalizing the fact that geometric phases…

其他凝聚态物理 · 物理学 2024-07-25 Joyeta Saha , Sujith Nedungattil Subrahmanian , Joydeep Bhattacharjee

We review recent work on the phase behaviour of binary charged sphere mixtures as a function of particle concentration and composition. Both size ratios and charge ratios are varied over a wide range. By contrast to hard spheres the long…

We investigate the equilibrium charge distribution of dust grains in the interstellar medium (ISM). Our treatment accounts for collisional charging by electrons and ions, photoelectric charging due to a background interstellar radiation…

Quantum--Mechanical methods that are both computationally fast and accurate are not yet available for electronic excitations having charge transfer character. In this work, we present a significant step forward towards this goal for those…

化学物理 · 物理学 2015-06-12 Michele Pavanello , Troy Van Voorhis , Lucas Visscher , Johannes Neugebauer

Modern electronic-structure theory defines dispersion interactions as connected intramonomer excitations. Using this definition, dispersion contributions have been shown in literature to be large relative to other contributions at van der…

化学物理 · 物理学 2025-12-15 Alice Balbi , Andrea Rygg Aagaard , Sarai Dery Folkestad , Ida-Marie Høyvik

We report on experimental results obtained from collisions of slow highly charged Ar9+ ions with a carbon monoxide dimer (CO)2 target. A COLTRIMS setup and a Coulomb explosion imaging approach are used to reconstruct the structure of the CO…

原子与分子团簇 · 物理学 2021-04-30 A. Méry , V. Kumar , X. Fléchard , B. Gervais , S. Guillous , M. Lalande , J. Rangama , W. Wolff , A. Cassimi

Charge state distributions in hot, dense plasmas are a key ingredient in the calculation of spectral quantities like the opacity. However, they are challenging to calculate, as models like Saha-Boltzmann become unreliable for dense, quantum…

等离子体物理 · 物理学 2024-06-19 J. White , W. Johns , C. J. Fontes , N. M. Gill , N. R. Shaffer , C. E. Starrett

We present an atomistic model for predicting the distribution of doping electric charges in layered molybdenum disulfide (MoS$_{2}$). This model mimics the charge around each ion as a net Gaussian-spatially-distributed charge plus an…

介观与纳米尺度物理 · 物理学 2018-10-18 Yida Yang , Michel Devel , Zhao Wang

We present a study of the $^4$He charge distribution based on realistic nucleonic wave functions and incorporation of the nucleon's quark substructure. The central depression of the proton point density seen in modern four-body calculations…

核理论 · 物理学 2009-10-30 L. Wilets , M. A. Alberg , S. Pepin , Fl. Stancu , J. Carlson , W. Koepf

We consider the system of particles with equal charges and nearest neighbour Coulomb interaction on the interval. We study local properties of this system, in particular the distribution of distances between neighbouring charges. For zero…

数学物理 · 物理学 2016-11-08 V. A. Malyshev , A. A. Zamyatin

The extractions of nuclear charge radii from muonic atom spectroscopy for $^{40}$Ca and $^{208}$Pb are revisited to analyze the model dependencies induced by employing a Fermi-type charge distribution. For that, the charge densities,…

核理论 · 物理学 2023-10-18 Hui Hui Xie , Tomoya Naito , Jian Li , Haozhao Liang

Photo-induced charge separation in nanowires or molecular wires had been studied in previous experiments and simulations. Most researches deal with the carrier diffusions with the classical phenomenological models, or the static energy…

介观与纳米尺度物理 · 物理学 2018-04-13 Hang Xie , Yu Zhang , Yanho Kwok , Wei E. I. Sha
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