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The kinetic stability of collisionless, sloshing beam-ion (45{\deg} pitch angle) plasma is studied in a 3D simple magnetic mirror, mimicking the Wisconsin High-temperature superconductor Axisymmetric Mirror (WHAM) experiment. The…

To optimize the processing conditions for the (Cr,Fe)S non-equilibrium phase with a pyrrhotite-type structure, the phase states and magnetic properties of the specimens obtained at various sintering temperatures were investigated. A…

A molecular level understanding of the properties of electroactive vanadium species in aqueous solution is crucial for enhancing the performance of vanadium redox flow batteries (RFB). Here, we employ Car-Parrinello molecular dynamics…

化学物理 · 物理学 2016-09-13 Zhen Jiang , Konstantin Klyukin , Vitaly Alexandrov

We propose a computationally lean, two-stage approach that reliably predicts self-assembly behavior of complex charged molecules on a metallic surfaces under electrochemical conditions. Stage one uses ab initio simulations to provide…

We study the strain relaxation mechanisms of Cu on Pd(111) up to the monolayer regime using two different computational methodologies, basin-hopping global optimization and energy minimization with a repulsive bias potential. Our numerical…

介观与纳米尺度物理 · 物理学 2010-02-18 J. Jalkanen , G. Rossi , O. Trushin , E. Granato , T. Ala-Nissila , S. C. Ying

We studied acetylhistidine (AcH), bare or microsolvated with a zinc cation by simulations in isolation. First, a global search for minima of the potential energy surface combining both, empirical and first-principles methods, is performed…

原子与分子团簇 · 物理学 2018-10-26 Markus Schneider , Carsten Baldauf

Steric hindered frustrated Lewis pairs (FLPs) have been shown to activate hydrogen molecules, and their reactivity is strongly determined by the geometric parameters of the Lewis acid s and bases. A recent experimental study showed that…

化学物理 · 物理学 2021-01-22 Xiaoqing Liu , Xiaojing Wang , Tianhao Yu , Weizhen Zhao , Lei Liu

We propose an experimental approach, by which thin films of copper polyphthalocyanine (CuPPC) can be directly synthesized in a chemical vapor deposition (CVD) set-up at mild temperature (420 {\deg}C). High polymerization degree and high…

Ab initio investigation of the two porous coordination polymers Cu[Cu(pdt)$ _{2} $] and Cu[Ni(pdt)$ _{2} $] has been performed. The dispersion laws and partial density of states was obtained with the PBE0 hybrid functional. The results…

材料科学 · 物理学 2021-01-20 S. V. Syrotyuk , Yu. V. Klysko

We have used the AMR hydrodynamic code, MG, to perform idealised 3D MHD simulations of the formation of clumpy and filamentary structure in a thermally unstable medium without turbulence. A stationary thermally unstable spherical diffuse…

星系天体物理 · 物理学 2016-03-23 C. J. Wareing , J. M. Pittard , S. A. E. G. Falle , S. Van Loo

We investigate the possible binding configurations of pairs of C60 molecules when pushed against each other. Tersoff potential, which represents intramolecular interactions well, has been used to calculate potential energies. We begin…

材料科学 · 物理学 2007-05-23 Narinder Kaur , Shuchi Gupta , Keya Dharamvir , V. K. Jindal

We report a biased QM/MM molecular dynamics study of the dissociation process of cytidine-cytidine complexes mediated by Ag+ or H+ ions. We performed calculations under real solvent conditions and obtained the free energy profiles (FEP) by…

化学物理 · 物理学 2020-05-11 P. N. Kliev , Z. V. Reveguk , P. A. Sokolov , T. S. Sych , R. R. Ramazanov

We perform an exhaustive theoretical study of the phase diagram of Cu-I binaries, focusing on Cu-poor compositions, relevant for p-type transparent conduction. We find that the interaction between neighboring Cu vacancies is the determining…

The authors use ab initio molecular dynamics and the density functional theory+U (DFT+U) method to compute the hydration environment of the manganese ion in manganese (II) and manganese (III) porphines (MnP) dispersed in liquid water. These…

统计力学 · 物理学 2007-05-23 Kevin Leung , Craig J. Medforth

We report thermodynamic and transport properties, and also theoretical calculations, for Cu-based compound Ca2Cu6P5 and compare with CaCu(2-x)P2. Both materials have layers of edge-sharing copper pnictide tetrahedral CuP4, similar to Fe-As…

超导电性 · 物理学 2016-10-13 Li Li , David Parker , Miaofang Chi , Georgiy M. Tsoi , Yogesh K. Vohra , Athena S. Sefat

Hydrogen-rich compounds have been extensively studied both theoretically and experimentally in the quest for novel high-temperature superconductors. Reports on sulfur-hydride attaining metallicity under pressure and exhibiting…

Montmorillonite (MMT) is the main mineral component of bentonite, which is currently proposed as a sealing material in deep geological repositories (DGRs) for used nuclear fuel. In the Canadian program, which will utilize copper-cladded…

The Quantum Chromodynamics (QCD) phase structure has been studied using the Polyakov-loop augmented quark-meson model (PQM) in the extended mean field approximation (e-MFA) where the quark one-loop vacuum term is included.~When the…

高能物理 - 唯象学 · 物理学 2023-05-26 Suraj Kumar Rai , Vivek Kumar Tiwari

High-entropy MBenes (HE-MBenes) represent a promising, unexplored class of 2D materials for electrocatalysis. In this work, we present a systematic computational screening of 56 equiatomic quinary HE-MBene compositions from the {Ti, V, Cr,…

材料科学 · 物理学 2026-05-12 Sree Harsha Bharadwaj H , Raghavan Ranganathan

Simulations have acted as a cornerstone to understand MOF/polymer interface structure, however, no molecular-level simulation has yet been performed at the nanoparticle scale. In this work, a hybrid MARTINI/Force Matching (FM) force field…

化学物理 · 物理学 2024-10-22 Cecilia M. S. Alvares , Rocio Semino