Results 91 to 100 of about 37,276 (209)
, 2009 A B-spline-based configuration interaction method is used to compute the energy levels of the ground and a few excited states of heliumlike atoms confined in a finite external square-well potential, as a function of the depth of the confining shell ...
O. Motapon, S. A. Ndengué
core +1 more source
Relativistic artificial molecule of two coupled graphene quantum dots at tunable distances
Nature CommunicationsIn a molecule formed by two atoms, energy difference between bonding and antibonding orbitals depends on distance between the two atoms. However, exploring molecular orbitals of two natural atoms with tunable distance has remained an outstanding ...
Xiao-Feng Zhou +5 more
doaj +1 more source
IUCrJ, 2018 This paper reports a new structured prismatic platelet, self-assembled by an ellipse-like quasi-unit cell, precipitated in Mg–In–Yb and Mg–In–Ca ternary alloys and aged isothermally at 200°C using aberration-corrected high-angle annular dark-field ...
Hongbo Xie +9 more
doaj +1 more source
Optical response of alkali metal atoms confined in nanoporous glass
, 2014 We study the influence of optical radiation on adsorption and desorption processes of alkali metal atoms confined in nanoporous glass matrices. Exposure of the sample to near-IR or visible light changes the atomic distribution inside the glass nanopores,
Marinelli, C. +8 more
core +1 more source
Structural and Electronic Properties of GaN (0001)/α-Al2O3 (0001) Interface
Advances in Condensed Matter Physics, 2015 Structural and electronic properties of the interface between α-Al2O3 (0001) and GaN (0001) surfaces are investigated through ab initio calculations within the density functional theory.
M. B. Pereira, E. M. Diniz, S. Guerini
doaj +1 more source
, 2017 We propose a simple method of calculating the electron correlation energy density e c (r) and the correlation potential V c (r) from second-order Møller–Plesset amplitudes and its generalization for the case of a configuration interaction wavefunction ...
Vyboishchikov, Sergei F. +1 more
core +1 more source
Atoms confined by very thin layers [PDF]
Journal of Mathematical Physics, 2014 The Hamiltonian of an atom with N electrons and a fixed nucleus of infinite mass between two parallel planes is considered in the limit when the distance a between the planes tends to zero. We show that this Hamiltonian converges in the norm resolvent sense to a Schrödinger operator acting effectively in \documentclass[12pt]{minimal}\begin{document}$L^{
openaire +2 more sources
Theory of light emission in sonoluminescence based upon transitions in confined atoms
, 2005 A theory of light emission in sonoluminescing hydrogen bubbles, based upon transitions in confined atoms, is proposed. Despite the simplicity of the assumptions this model accounts for a number of facts related to sonoluminescence: a broadband ...
A. Torrielli +5 more
core +1 more source
Universal vibrational anharmonicity in carbyne-like materials
Nature CommunicationsCarbyne, an infinite linear chain of carbon atoms, is the truly one-dimensional allotrope of carbon. While ideal carbyne and its fundamental properties have remained elusive, carbyne-like materials such as carbyne chains confined inside carbon nanotubes ...
Johannes M. A. Lechner +5 more
doaj +1 more source
Electron structure of endohedrally confined atoms: atomic hydrogen in an attractive shell
, 1999 The properties of hydrogen confined endohedrally at the geometrical centre of a spherical, attractive short-range potential shell are explored. The evolution of the energy spectrum, as a function of the depth of the shell, is found to exhibit unusual ...
Lakshmi, P. A. +3 more
core