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121
Geometries and Electronic States of Divacancy Defect in Finite-Size Hexagonal Graphene Flakes
Published 2017-01-01“…The geometries and electronic properties of divacancies with two kinds of structures were investigated by the first-principles (U) B3LYP/STO-3G and self-consistent-charge density-functional tight-binding (SCC-DFTB) method. …”
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122
A DFT survey of CH4 storage and separation from CH4 /X (X = H2, CO2, N2, CF4, he, ne, and Ar) gas mixtures on Ti/Sc decorated B40 fullerene
Published 2025-03-01“…In the current study, first-principles calculations are used to determine the stability of B40 fullerene decorated with Sc or Ti atoms and its applications in storing and separating CH4 from gas mixtures. …”
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123
Electronic Structure and Optical Properties of GaAs1-xBix Alloy
Published 2014-01-01“…A first-principles study has been performed to investigate the structural and electronic properties of the GaAs1-xBix system. …”
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124
From de Sitter to de Sitter: Decaying Vacuum Models as a Possible Solution to the Main Cosmological Problems
Published 2018-01-01“…It is also argued that even the cosmological constant problem becomes less severe provided that the characteristic scales of the two limiting de Sitter manifolds are predicted from first principles.…”
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125
Machine learning configuration-dependent friction tensors in Langevin heatbaths
Published 2025-01-01“…We demonstrate the capabilities of the model approach by fitting a model of configuration-dependent tensorial electronic friction calculated from first principles that arises during reactive molecular dynamics at metal surfaces.…”
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126
Formation, Energetics, and Electronic Properties of Graphene Monolayer and Bilayer Doped with Heteroatoms
Published 2015-01-01“…We here review the recent work of boron and nitrogen doping effects into graphene monolayer as well as bilayer on the basis of the first-principles electronic structure calculations in the framework of the density-functional theory. …”
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127
The Synthetic Effects of Iron with Sulfur and Fluorine on Photoabsorption and Photocatalytic Performance in Codoped
Published 2012-01-01“…The structural and electronic properties of iron-fluorine (Fe-F) and iron-sulfur (Fe-S) codoped anatase TiO2 are investigated by first-principles based on density functional theory. Our results show that the formation energy of codoped system is lower than that of single-element doping, which indicates the synergic effect of codoping on the stability of the structure. …”
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128
Revisiting the Zinc-Blende/Wurtzite Heterocrystalline Structure in CdS
Published 2014-01-01“…The band offset at CdS zinc-blende (ZB)/wurtzite (WZ) heterocrystalline interface was revisited using the first principles calculations with the local density approximation (LDA), generalized gradient approximation (GGA), and Heyd-Scuseria-Ernzerhof (HSE06) hybrid functional. …”
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129
Magnetic Properties of Well-Aligned ZnO Nanorod Arrays Grown by a Simple Hydrothermal Reaction
Published 2014-01-01“…The PL results suggested that the possible defect in the as-prepared ZnO nanorod arrays might be VZn, Oi, or OZn. The first-principles calculations reveal that the room temperature ferromagnetism may result from the VZn defects present in the ZnO nanorod and the hybridization of the Zn 3d states with O 2p states is responsible for the half-metallic ferromagnetism in ZnO nanorod.…”
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130
Hydrothermal Synthesis of Pt-, Fe-, and Zn-doped SnO2 Nanospheres and Carbon Monoxide Sensing Properties
Published 2013-01-01“…In addition, a theoretical study based on the first principles calculation was conducted. All results demonstrate the potential of Pt dopant for improving the gas sensing properties of SnO2-based sensors to carbon monoxide.…”
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131
Analytical Prediction of Hole Diameter in Thin Plates Due to Hypervelocity Impact of Spherical Projectiles
Published 1997-01-01“…A first-principles-based model is presented for calculating the hole diameter resulting from the normal hypervelocity impact of a spherical aluminum projectile on a thin aluminum plate. …”
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132
Analogous Atomic and Electronic Properties between VN and VNCB Defects in Hexagonal Boron Nitride
Published 2022-01-01“…We investigate defect properties in hexagonal boron nitride (hBN) which is attracting much attention as a single photon emitter. Using first-principles calculations, we find that nitrogen-vacancy defect VN has a lower energy structure in C1h symmetry in 1− charge state than the previously known D3h symmetry structure. …”
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133
Debris Cloud Material Characterization for Hypervelocity Impacts of Single- and Multimaterial Projectiles on Thin Target Plates
Published 1995-01-01“…This article presents a first-principles based method to calculate: the amount of material in a debris cloud created by a perforating hypervelocity impact that is solid, molten, and vaporous; the debris cloud leading edge, trailing edge, center-of-mass, and expansion velocities; and the angular spread of the debris cloud material. …”
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134
Elastic Properties and the Band Gap of AlNxP1-x Semiconductor Alloy: A Comparative Study of Various Ab Initio Approaches
Published 2016-01-01“…Structural and elastic properties of AlNxP1-x, a novel semiconductor alloy, are studied from the first principles in both zinc-blende and wurtzite structures. …”
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135
Half-Metallic Ferromagnetism in Chalcopyrite (AlGaMn)P2 Alloys
Published 2015-01-01“…We studied the electronic and magnetic properties of (Al1−yMny)GaP2 (Ga-rich) and Al(Ga1−yMny)P2 (Al-rich) with y = 0.03125, 0.0625, 0.09375, and 0.125 by using the first-principles calculations. The ferromagnetic Mn-doped AlGaP2 chalcopyrite is the most energetically favorable one. …”
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136
Topological electronic structure and transport properties of the distorted rutile-type WO2
Published 2025-01-01“…Electrical resistivity and Hall effect measurements of high-quality single crystals revealed the transport property characteristics of topological materials; these characteristics included an extremely large magnetoresistance of 13 200% (2 K and 9 T) and a very high carrier mobility of 25 700 cm2 V−1 s−1 (5 K). First-principles calculations revealed Dirac nodal lines (DNLs) near the Fermi energy in the electronic structure when spin–orbit interactions (SOIs) were absent. …”
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137
Oxygen Defect-Mediated Magnetism in Fe-C Codoped TiO2
Published 2016-01-01“…The magnetic properties of the C doped and C-Fe codoped TiO2 films fabricated by sol-gel and spin coating have been investigated combining experiments and first-principles calculations. All the samples exhibit the anatase crystal phase and the room temperature ferromagnetism. …”
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138
Highly sensitive and efficient 1550 nm photodetector for room temperature operation
Published 2025-01-01“…We use specifically stacked bilayer hexagonal BAs, with material properties calculated from first principles, on a co-optimized dielectric photonic crystal substrate to simultaneously decrease the dark current by three orders of magnitude at RT and maintain an EQE of >99%. …”
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139
Effect of Fe Concentration on Fe-Doped Anatase TiO2 from GGA + U Calculations
Published 2012-01-01“…To comprehend the photocatalytic mechanisms of anatase Ti1−𝑥Fe𝑥O2 with various concentrations of Fe, this study performed first principles calculations based on density functional theory with Hubbard U on-site correction to evaluate the crystal structure, impurity formation energy, and electronic structure. …”
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140
SPACIER: on-demand polymer design with fully automated all-atom classical molecular dynamics integrated into machine learning pipelines
Published 2025-01-01“…Abstract Machine learning has rapidly advanced the design and discovery of new materials with targeted applications in various systems. First-principles calculations and other computer experiments have been integrated into material design pipelines to address the lack of experimental data and the limitations of interpolative machine learning predictors. …”
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