Atomistic simulation of physical vapor deposition of optical thin films

FV Grigoriev, VB Sulimov - Nanomaterials, 2023 - mdpi.com
A review of the methods and results of atomistic modeling of the deposition of thin optical
films and a calculation of their characteristics is presented. The simulation of various …

First-principles molecular dynamics simulations of MgSiO3 glass: Structure, density, and elasticity at high pressure

DB Ghosh, BB Karki, L Stixrude - American Mineralogist, 2014 - degruyter.com
We report a first-principles molecular dynamics study of the equation of state, structural, and
elastic properties of MgSiO3 glass at 300 K as a function of pressure up to 170 GPa. We …

[HTML][HTML] Large-scale DFT calculations of multi-component glass systems (SiO2) 0.70 (Al2O3) 0.13 (XO) 0.17 (X= Mg, Ca, Sr, Ba): Accuracy of classical force fields

A Tanaka, A Saito, T Murata, A Nakata… - Journal of Non-Crystalline …, 2024 - Elsevier
Although molecular dynamics (MD) simulation is a powerful tool for investigating the atomic-
scale structures of complex materials, several challenges limit their reliable and accurate …

Self-learning hybrid Monte Carlo method for isothermal–isobaric ensemble: Application to liquid silica

K Kobayashi, Y Nagai, M Itakura… - The Journal of Chemical …, 2021 - pubs.aip.org
Self-learning hybrid Monte Carlo (SLHMC) is a first-principles simulation that allows for
exact ensemble generation on potential energy surfaces based on density functional theory …

Absence of Oxygen-Vacancy-Related Deep Levels in the Amorphous Mixed Oxide : First-Principles Exploration of Gate Oxides in -Based Power …

K Chokawa, T Narita, D Kikuta, K Shiozaki, T Kachi… - Physical Review …, 2020 - APS
We report density-functional calculations that clarify the atomic and electronic structures of
the oxygen vacancy VO in amorphous (Al 2 O 3) 1− x (Si O 2) x mixed oxides, which are …

[HTML][HTML] Static structure, collective dynamics and transport coefficients in the liquid Li-Pb alloy. An ab initio molecular dynamics study

MMG Alemany, J Souto-Casares, LE González… - Journal of Molecular …, 2021 - Elsevier
Several static and dynamic properties of the liquid Li-Pb alloy at diverse compositions, have
been calculated by means of ab initio molecular dynamics simulation study. This alloy has …

Improvement of the reliability of potassium-ion electrets thorough an additional oxidation process

Y Ohata, T Nakanishi, K Chokawa, M Araidai… - Applied Physics …, 2022 - pubs.aip.org
Potassium-ion electrets, which mainly consist of amorphous silica and permanently store
negative charge, are vital elements of small autonomous vibration-powered generators …

Negative-charge-storing mechanism of potassium-ion SiO2-based electrets for vibration-powered generators

T Nakanishi, T Miyajima, K Chokawa, M Araidai… - Applied Physics …, 2020 - pubs.aip.org
A potassium-ion electret, which is a key element of vibration-powered
microelectromechanical generators, can store negative charge almost permanently …

First-principles study on the specific heat jump in the glass transition of silica glass and the Prigogine-Defay ratio

K Shirai, K Watanabe, H Momida… - Journal of Physics …, 2023 - iopscience.iop.org
The most important characteristic of glass transition is a jump in the specific heat $\Delta C_
{p} $. Despite its significance, no standard theory exists to describe it. In this study, first …

Effect of carbon atoms on the reliability of potassium-ion electrets used in vibration-powered generators

Y Ohata, M Araidai, Y Shibata… - Japanese Journal of …, 2022 - iopscience.iop.org
Potassium-ion electrets, which are key elements in vibration-powered
microelectromechanical generators, can store negative charge almost permanently …