Results 11 to 20 of about 51,825 (244)

Locally self-consistent embedding approach for disordered electronic systems [PDF]

open access: yes, 2019
We present a new embedding scheme for the locally self-consistent method to study disordered electron systems. We test this method in a tight-binding basis and apply it to the single band Anderson model.
Chioncel, Liviu   +6 more
core   +3 more sources

Spin-orbit coupling in methyl functionalized graphene [PDF]

open access: yes, 2016
We present first-principles calculations of the electronic band structure and spin-orbit effects in graphene functionalized with methyl molecules in dense and dilute limits. The dense limit is represented by a 2$\times$2 graphene supercell functionalized
Fabian, Jaroslav   +5 more
core   +2 more sources

Supercell altermagnets

open access: yesPhysical Review B
Altermagnets are compensated magnets with unconventional $d$, $g$, and $i$-wave spin order in reciprocal space. So far the search for new altermagnetic candidates has been focused on materials in which the magnetic unit cell is identical to the non-magnetic one, i.e. magnetic structures with zero propagation vector.
Rodrigo Jaeschke-Ubiergo   +4 more
openaire   +2 more sources

Supercell calculations in the reduced Hartree-Fock model for crystals with local defects

open access: yes, 2016
In this article, we study the speed of convergence of the supercell reduced Hartree-Fock~(rHF) model towards the whole space rHF model in the case where the crystal contains a local defect.
Gontier, David, Lahbabi, Salma
core   +3 more sources

First-principles study of the lattice dynamics of Sb2S3

open access: yes, 2013
We present a lattice dynamics study of orthorhombic antimony sulphide (Sb2S3) obtained using density-functional calculations in conjunction with the supercell force-constant method. The effect of Born effective charges is taken into account using a mixed-
Chua, Kun Ting Eddie   +3 more
core   +1 more source

Valley Hall effect in disordered monolayer MoS2 from first principles [PDF]

open access: yes, 2015
Electrons in certain two-dimensional crystals possess a pseudospin degree of freedom associated with the existence of two inequivalent valleys in the Brillouin zone.
Olsen, Thomas, Souza, Ivo
core   +2 more sources

Length dependence of thermal conductivity by approach-to-equilibrium molecular dynamics

open access: yes, 2016
The length dependence of the thermal conductivity over more than two decades is systematically studied for a range of materials, interatomic potentials and temperatures, by the atomistic approach-to-equilibrium molecular dynamics method (AEMD).
Cleri, Fabrizio   +3 more
core   +1 more source

The response of mechanical and electronic properties of graphane to the elastic strain [PDF]

open access: yes, 2010
Based on first-principles calculations, we resent a method to reveal the elastic properties of recently synthesized monolayer hydrocarbon, graphane. The in-plane stiffness and Poisson's ratio values are found to be smaller than those of graphene, and its
Cahangirov, S., Ciraci, S., Topsakal, M.
core   +2 more sources

Supercell Spectrum. Part II: A Semi-Objective Method for Radar Classification of Supercell Type

open access: yesE-Journal of Severe Storms Meteorology, 2021
his paper describes a method for classifying supercells that relies partially upon a mixture of objective radar analysis and human analysis. The technique is used to ascertain the direction and distance of supercell precipitation core centroids from their updrafts.
Kyle Beatty   +3 more
openaire   +1 more source

Supercell studies of the Fermi surface changes in the electron-doped superconductor LaFeAsO$_{1-x}$F$_x$

open access: yes, 2008
We study the changes in the Fermi surface with electron doping in the LaFeAsO$_{1-x}$F$_x$ superconductors with density-functional supercell calculations using the linearized augmented planewave (LAPW) method.
P. Blaha   +3 more
core   +1 more source

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