Results 1 to 10 of about 10,291,480 (158)

Modelling of the L12 → FCC phase transition in Cu3Au nanoclusters [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2017
Boundaries of thermal stability of the initial L12 phase in clusters of Cu3Au nano-alloy of up to 8 nm in size were investigated by molecular dynamics method using a modified tight-binding potential TB-SMA.
Yu.Ya. Gafner   +3 more
doaj   +1 more source

Comparative molecular dynamics simulation of synthesis of silver nanoparticles from the gas phase

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2022
A comparative molecular dynamics simulation of the gas-phase synthesis of Ag nanoparticles is carried out employing two different types of many-particle potentials of the interatomic interaction: a potential corresponding to the embedded atom method and ...
S.A. Vasilyev   +3 more
doaj   +1 more source

Modeling of processes of structure formation in bimetallic nanoalloys of different composition [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2017
In this work the processes of an internal structure formation in copper-bearing nanoalloys of silver, cobalt and palladium were studied using molecular dynamics with a modified tight-binding potential.
V.S. Myasnichenko   +5 more
doaj   +1 more source

Why DFT‐Based Tight Binding Gives a Better Representation of the Potential at Metal‐Solution Interfaces than DFT Does

open access: yesChemElectroChem, 2023
In modelling electrochemical interfaces it is important to treat electrode and electrolyte at the same level of theory. Density functional theory, which is usually the method of choice, suffers from a distinct disadvantage: The inner potential is ...
Prof. Dr. Paola Quaino   +5 more
doaj   +1 more source

Analysis of the chemical composition of Cu-Au nanoparticles during simulation of the process of gas-phase synthesis

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2022
The process of synthesis of CuAu nanoclusters from a high-temperature gas phase was simulated. The molecular dynamics method was employed, 1124 Cu and Au atoms were used as the initial configuration.
Yu.Ya. Gafner, D.A. Ryzhkova
doaj   +1 more source

Thermal stability of copper clusters with the size of 100 — 150 atoms [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2017
In the framework of this paper we have studied the thermal stability of copper clusters in the range of 100 — 150 atoms. The size of the copper nanocluster is determined, which has the greatest thermal stability in the size range under consideration.
V.S. Myasnichenko   +4 more
doaj   +1 more source

Electrical analogue of one-dimensional and quasi-one-dimensional Aubry–André–Harper lattices

open access: yesScientific Reports, 2023
This work explores the potential for achieving correlated disorder in electrical circuits by utilizing reactive elements. By establishing a direct correspondence between the tight-binding Hamiltonian and the admittance matrix of the circuit, a novel ...
Sudin Ganguly, Santanu K. Maiti
doaj   +1 more source

SOME NEW RESULTS OF MODELING THE PROCESSES OF THE GAS-PHASE SYNTHESIS OF Cu — Au NANOPARTICLES

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2020
Simulation of synthesis of binary Cu — Au nanoclusters from a high-temperature gas medium by the condensation method was carried out by the molecular dynamics method based on the tight-binding potential.
Yu.Ya. Gafner   +2 more
doaj   +1 more source

Microscopic mechanism of nucleation and growth of helium bubbles in monovacancy in tungsten: helium regulates the charged states of tungsten atoms

open access: yesNuclear Fusion, 2023
In fusion reactor, tungsten (W) has been selected as a candidate for plasma-facing materials due to its excellent properties. However, W-PFMs suffer from helium (He) bubbles where He atoms are produced during deuterium tritium fusion in fusion reactors ...
Zhao-Zhong Fu, Jiong-Rong Wang, B.C. Pan
doaj   +1 more source

Calculation of the surface energy of copper nanowires of different thickness and orientation [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2018
The Monte-Carlo lattice method is used to search for the surface structure of crystalline copper nanowires of various orientations. Fragmentation of 3,3 nm thick wires into individual spherical nanoparticles is observed.
V.S. Myasnichenko   +4 more
doaj   +1 more source

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