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相关论文: Surface Binding Energies for Amorphous Plagioclase…

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Semi-empirical mass formula of the atomic nucleus describe binding energies of the nuclei. In the simple form of this formula, there are five terms related to the properties of the nuclear structure. The coefficients in each terms can be…

核理论 · 物理学 2016-12-12 Serkan Akkoyun , Tuncay Bayram

In this Letter we present first principle calculation of surface energies of rock-salt (B1), zinc-blende (B3), and wurtzite (B4) AlN allotropes. Out of several low-index facets, the highest energies are obtained for mono-atomic surfaces…

材料科学 · 物理学 2012-08-31 David Holec , Paul H. Mayrhofer

Experiments on atoms in intense laser pulses and the corresponding exact ab initio solutions of the time-dependent Schr\"odinger equation (TDSE) yield photoelectron spectra with low-energy features that are not reproduced by the otherwise…

原子物理 · 物理学 2017-11-21 Tian-Min Yan , S. V. Popruzhenko , M. J. J. Vrakking , D. Bauer

Heavy (Z>26) solar energetic particles (SEPs) with energies ~1 MeV/nucleon are known to leave visible damage tracks in meteoritic materials. The density of such solar flare tracks in lunar and asteroidal samples has been used as a measure…

地球与行星天体物理 · 物理学 2023-11-20 A. R. Poppe , P. S. Szabo , E. R. Imata , L. P. Keller , R. Christoffersen

Hydrogen-line emission from an accretion shock has recently been observed at planetary-mass objects. Our previous work predicted the shock spectrum and luminosity for a shock on the circumplanetary disc. We extend this to the planet-surface…

地球与行星天体物理 · 物理学 2021-04-22 Yuhiko Aoyama , Gabriel-Dominique Marleau , Christoph Mordasini , Masahiro Ikoma

Context. We investigate the binding energies of atoms to interstellar dust particles, which play a key role in their growth and evolution, as well as for the chemical reactions on their surfaces. Aims. We aim to compute the binding energies…

Sputtering by solar wind ions is a key process driving the ejection of high-energy particles into the exospheres of airless bodies like asteroids, Mercury and the Moon. In view of upcoming missions which will deliver new in-situ data on…

Event-by-event (ebe) fluctuations in mean pseudorapidity values of relativistic charged particles in full phase space is studied by analysing experimental data on $^{16}O-AgBr$ collisions at 14.5A, 60A, and 200A GeV/c and $^{32}S-AgBr$…

高能物理 - 唯象学 · 物理学 2022-05-31 Bushra Ali , Shaista Khan , Anuj Chandra , Shakeel Ahmad

Acetaldehyde is one of the most common and abundant gaseous interstellar complex organic molecules, found in cold and hot regions of the molecular interstellar medium. Its presence in the gas-phase depends on the chemical formation and…

星系天体物理 · 物理学 2022-09-21 S. Ferrero , F. Grieco , A-S. Ibrahim Mohamed , F. Dulieu , A. Rimola , C. Ceccarelli , C. Nervi , M. Minissale , P. Ugliengo

The purpose of this study is threefold: first, to identify a scheme for the determination of the surface energy coefficient a_surf that offers the best compromise between robustness, precision, and numerical efficiency; second, to analyze…

核理论 · 物理学 2018-03-06 R. Jodon , M. Bender , K. Bennaceur , J. Meyer

In this paper we propose an analytic function for the spherical albedo values of airless and near-airless magma ocean planets (AMOPs). We generated 2-D fractal surfaces with varying compositions onto which we individually threw 10,000 light…

地球与行星天体物理 · 物理学 2021-02-17 Darius Modirrousta-Galian , Yuichi Ito , Giuseppina Micela

In recent research it was found that the fundamental shear-localizing instability of amorphous solids under external strain, which eventually results in a shear band and failure, consists of a highly correlated array of Eshelby quadrupoles…

软凝聚态物质 · 物理学 2015-06-11 Ratul Dasgupta , H. George E. Hentschel , Itamar Procaccia

3He-rich solar energetic particles (SEPs) are believed to be accelerated in solar flares or jets by a mechanism that depends on the ion charge-to-mass (Q/M) ratio. It implies that the flare plasma characteristics (e.g., temperature) may be…

太阳与恒星天体物理 · 物理学 2021-03-10 R. Bucik , S. M. Mulay , G. M. Mason , N. V. Nitta , M. I. Desai , M. A. Dayeh

Collisions of atoms and molecules with metal surfaces create electronic excitations in the metal, leading to nonadiabatic energy dissipation, inelastic scattering, and sticking. Mixed quantum-classical molecular dynamics simulation methods,…

We report an ab initio study of the electronic properties of surface dangling-bond (SDB) states in hydrogen-terminated Si and Ge nanowires with diameters between 1 and 2 nm, Ge/Si nanowire heterostructures, and Si and Ge (111) surfaces. We…

介观与纳米尺度物理 · 物理学 2010-09-30 R. Kagimura , R. W. Nunes , H. Chacham

A general self-learning metabasin escape (SLME) algorithm~\citep{caoPRE2012} is coupled in this work with continuous shear deformations to probe the yield stress as a function of strain rate and temperature for a binary Lennard-Jones (LJ)…

计算物理 · 物理学 2014-05-13 Penghui Cao , Xi Lin , Harold S. Park

Context. Clumping is a common property of stellar winds and is being incorporated to a solution of the radiative transfer equation coupled with kinetic equilibrium equations. However, in static hot model atmospheres, clumping and its…

太阳与恒星天体物理 · 物理学 2021-11-10 Jiří Kubát , Brankica Kubátová

In the framework of nuclear energy density functional (EDF) methods, many nuclear phenomena are related to the deformation of intrinsic states. Their accurate modeling relies on the correct description of the change of nuclear binding…

核理论 · 物理学 2019-04-26 W. Ryssens , M. Bender , K. Bennaceur , P. -H. Heenen , J. Meyer

Analysis of laboratory experiments simulating space weathering optical effects on atmosphereless planetary bodies reveals that the time needed to alter the spectrum of an ordinary chondrite meteorite to resemble the overall spectral shape…

地球与行星天体物理 · 物理学 2012-11-28 D. I. Shestopalov , L. F. Golubeva , E. A. Cloutis

We compute scattering rates for electrons in the two-dimensional Hubbard model for a one-orbital metal and a two-orbital band insulator by means of the Boltzmann scattering equation (BSE) and dynamical mean-field theory (DMFT). As an…

强关联电子 · 物理学 2021-05-26 M. Wais , J. Kaufmann , M. Battiato , K. Held