Results 11 to 20 of about 153,676 (265)

First-principles calculations for topological quantum materials [PDF]

open access: yesNature Reviews Physics, 2021
26 pages, 7 ...
Jiewen Xiao, Binghai Yan
openaire   +4 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.
van de Walle, A., Ceder, G.
openaire   +3 more sources

Adsorption and Sensing Properties of Formaldehyde on Chemically Modified Graphene Surfaces

open access: yesCrystals, 2022
Chemically modifying graphene (such as chemical doping) is a commonly used method to improve its formaldehyde sensing properties, but the microscopic mechanisms of heteroatoms in the adsorption and sensing process are still unclear.
Lunwei Yang   +4 more
doaj   +1 more source

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

Topological semimetals predicted from first-principles calculations [PDF]

open access: yesJournal of Physics: Condensed Matter, 2016
We have given a summary on our theoretical predictions of three kinds of topological semimetals (TSMs), namely, Dirac semimetal (DSM), Weyl semimetal (WSM) and Node-Line Semimetal (NLSM). TSMs are new states of quantum matters, which are different with topological insulators. They are characterized by the topological stability of Fermi surface, whether
Weng, Hongming, Dai, Xi, Fang, Zhong
openaire   +4 more sources

Half-Metallic Silicon Nanowires: First-Principles Calculations [PDF]

open access: yesPhysical Review Letters, 2007
From first-principles calculations, we predict that specific transition metal (TM) atom-adsorbed silicon nanowires have a half-metallic ground state. They are insulators for one spin direction, but show metallic properties for the opposite spin direction.
Durgun, E.   +3 more
openaire   +4 more sources

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

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

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