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Description of Quasidegenerate Electronic States Exhibiting Avoided Crossing
Molecular Physics, 2018The feasibility of the multiconfiguration quasidegenerate perturbation theory (MCQDPT) with improved virtual orbital-complete active space configuration interaction (IVO-CASCI) reference function i...
Sudip Chattopadhyay
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Electron excitation cross section of atomic transitions in the two‐state approximation
Annalen der Physik, 2004Abstract The cross section of the 3s → 3p transition of sodium produced by electron impact has been calculated by performing a numerical integration of the coupled differential equations. The potential functions have been calculated exactly using the hydrogen‐like wave functions for the valence electron of the sodium with an effective
Kamli, A., Bougouffa, S.
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Electron attachment cross sections and negative ion states of SF6
International Journal of Mass Spectrometry, 2001Abstract A comprehensive and critical assessment of published data on the total, dissociative and nondissociative electron attachment cross sections for SF 6 allowed us to recommend or suggest room temperature values for these cross sections over an energy range from 0.0001 eV to 15 eV. The total electron attachment cross section is dominated by the
Loucas G Christophorou, James K Olthoff
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State-selective cross section scalings for electron capture collisions
Journal of Physics B: Atomic, Molecular and Optical Physics, 2000The classical-trajectory Monte Carlo method is used to calculate total and final nf state-selective electron capture cross sections for various fully stripped ions, ranging from He2+ to Ne10+, incident on H(ni = 1-4) and Li(2s and 2p) targets over the collision energies of 1-100 keV u-1.
K R Cornelius, K Wojtkowski, R E Olson
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Electron Collision Cross Sections Involving Excited States
1990It has long been recognized that atoms and molecules in the flow field around a hypersonic space vehicle, upon its entry into the planetary atmosphere, undergo a variety of chemical reactions. These include dissociation, ionization, charge transfer, and exchange reactions, along with rotational, vibrational, and electronic excitations. At low altitudes,
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The effect of cross section on the electron states in quantum wire lasers
Semiconductor Science and Technology, 1994We consider the effects of the cross-sectional shape on the quantum confinement energies in quantum wire lasers that have been prepared by epitaxial overgrowth on V-grooved and other patterned substrates. Analytic solutions allow some key conclusions to be drawn, while numerical solutions allow a closer approximation to the actual shapes generated ...
C J Anthony, M J Kelly
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Cross sections, polarization and orientation in electron-impact excitation to states
Journal of Physics B: Atomic, Molecular and Optical Physics, 1998This work reports results from a comprehensive experimental and theoretical study of the electron-impact excitation of some levels belonging to the configuration in neon. We performed electron-polarized photon coincidence experiments for the excitation of the and levels in neon where the polarized photon emitted in the radiative decay was detected in ...
A W Baerveldt +7 more
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Cross sections for electron scattering from the ground state of mercury
Journal of Physics B: Atomic, Molecular and Optical Physics, 2003We have performed close-coupling calculations of electron scattering from the ground state of mercury atoms in the 4-500 eV energy range. Total scattering cross section and differential and integrated cross sections for elastic scattering and excitations of the 6s6p 1P1, 6s6p 3P0,1,2, 6s7p 1P1, 6s7s 1S0 and 6s7s 3S1 states are presented.
Fursa, D.V., Bray, I., Lister, G.
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Numerical Study of Electronic States in a Quantum Wire at Crossing Heterointerfaces
1991We demonstrate that the confinement produced by the internal electric fields at crossing heterointerfaces is sufficient to produce a bound electronic state in two dimensions. The potential profiles and electronic states are obtained by numerically solving the Poisson and Schrodinger equations using the Finite Element Method.
Henry K. Harbury, Wolfgang Porod
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Physical Review A, 2000
The development and initial results of a method for the determination of differential cross sections for electron scattering by molecular oxygen are described. The method has been incorporated into an existing package of computer programs which, given spectroscopic factors, dissociation energies and an energy-loss spectrum for electron-impact ...
L. Campbell +4 more
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The development and initial results of a method for the determination of differential cross sections for electron scattering by molecular oxygen are described. The method has been incorporated into an existing package of computer programs which, given spectroscopic factors, dissociation energies and an energy-loss spectrum for electron-impact ...
L. Campbell +4 more
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