Results 11 to 20 of about 1,130,237 (294)

The first principles calculation of transport coefficients [PDF]

open access: yesPhysical Review Letters, 1998
We demonstrate the practical feasibility of calculating transport coefficients such as the viscosity of liquids completely from first principles using the Green-Kubo relations.
Alfe`, Dario, Gillan, Michael J.
core   +6 more sources

First-principles calculations on dislocations in MgO

open access: yesScience and Technology of Advanced Materials
While ceramic materials are widely used in our society, their understanding of the plasticity is not fully understood. MgO is one of the prototypical ceramics, extensively investigated experimentally and theoretically. However, there is still controversy
Shin Kiyohara   +2 more
doaj   +3 more sources

Automating first-principles phase diagram calculations [PDF]

open access: yesJournal of Phase Equilibria, 2002
Devising a computational tool that assesses the thermodynamic stability of materials is among the most important steps required to build a “virtual laboratory,” where materials could be designed from first principles without relying on experimental input.
Ceder, G., van de Walle, A.
core   +5 more sources

First-principles analysis on the nitrogen adsorption and diffusion in Ti alloy towards clarified diffusion mechanism in nitriding

open access: yesJournal of Materials Research and Technology, 2022
Based on first-principles calculations, the adsorption and diffusion of the nitrogen atoms in Ti bulk and Ti surface layer were studied. Al doping is considered in the study of the surface layer.
Guotan Liu   +7 more
doaj   +1 more source

Transition of the Interface between Iron and Carbide Precipitate From Coherent to Semi-Coherent

open access: yesMetals, 2017
There are some precipitates that undergo transition from a coherent to semi-coherent state during growth. An example of such a precipitate in steel is carbide with a NaCl-type structure, such as TiC and NbC.
Hideaki Sawada   +3 more
doaj   +1 more source

First-principles investigation of divalent ion sensing with cesium lead trihalides

open access: yesOptical Materials: X, 2023
The first-principles calculations of the cesium lead trihalides, CsPbX3 (X = Cl, Br and I), doped with divalent ions such as Cd2+, Cu2+, Mg2+, Ni2+, Sn2+ and Zn2+ are carried out within the density functional theory to explore ion-sensing ability of ...
Tomoyuki Yamamoto   +7 more
doaj   +1 more source

The electrochemical interface in first-principles calculations

open access: yesSurface Science Reports, 2020
First-principles predictions play an important role in understanding chemistry at the electrochemical interface. Electronic structure calculations are straightforward for vacuum interfaces, but do not easily account for the interfacial fields and solvation that fundamentally change the nature of electrochemical reactions. Prevalent techniques for first-
Kathleen, Schwarz   +1 more
openaire   +3 more sources

Efficient calculation of carrier scattering rates from first principles

open access: yesNature Communications, 2021
It is difficult to compute the transport properties of a broad array of complex materials both accurately and inexpensively. Here, the authors develop a computationally efficient method for calculating carrier scattering rates of semiconductors, with ...
Alex M. Ganose   +5 more
doaj   +1 more source

Nitride Wide-Bandgap Semiconductors for UV Nonlinear Optics

open access: yesCrystals, 2023
Nitride wide-bandgap semiconductors possess a wide tunable energy bandgap and abundant coordination anionic groups. This suggests their potential to display nonlinear optical (NLO) properties in the UV wavelength spectrum.
Shihang Li, Lei Kang
doaj   +1 more source

Effects of Zn and Mg Segregations on the Grain Boundary Sliding and Cohesion in Al: Ab Initio Modeling

open access: yesMetals, 2021
The formation of Zn and Mg segregations at a tilt Σ5{013} grain boundary (GB) in Al and the effects of these solutes on deformation behavior of polycrystalline Al were investigated using ab initio total energy calculations. Using a step-by-step modeling
Andrey Kuznetsov   +3 more
doaj   +1 more source

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