Now showing items 1-10 of 23014
Electronic structure and effectively unpaired electron density topology in closo -Boranes: Nonclassical three-center two-electron bonding
(American Chemical Society, 2011-07)
This article provides a detailed study of the structure and bonding in closo-borane cluster compounds X2B3H3 (X = BH-, P, SiH, CH, N), with particular emphasis on the description of the electron distribution using the ...
¿Qué es un electrón?
Controlled energy-selected electron capture and release in double quantum dots
(American Physical Society, 2013-12)
Highly accurate quantum electron dynamics calculations demonstrate that energy can be efficiently transferred between quantum dots. Specifically, in a double quantum dot an incoming electron is captured by one dot and the ...
Absence of Cooper-type bound states in three- and few-electron systems
It is shown that the appearance of a fixed-point singularity in the kernel of the two-electron Cooper problem is responsible for the formation of the Cooper pair for an arbitrarily weak attractive interaction between two ...
Mylar Secondary Emission-energy Distribution and Yields
(Institute of Electrical and Electronics Engineers (IEEE), 2014-02-01)
We have characterized Mylar by determining the emission yield and energy spectrum of emitted secondary electrons. In this study we used a conventional electron accelerator apparatus to which we have made some important ...
Energy Distribution of Secondary Electrons from Gold on Teflon-FEP
(Ieee-inst Electrical Electronics Engineers Inc, 2016-10-01)
This paper presents results of the spectrum of energy of secondary electrons for the energies of perpendicularly incident electrons of 0.4 keV, 2.0 keV, or 3.5 keV in a gold surface deposited on a substratum of Teflon-FEP. ...
Using shifts in the electronic emission curve to evaluate polymer surface degradation
(Elsevier B.V., 2001-01-01)
The polymer surface degradation and/or modification evolution of Teflon FEP and Mylar C films caused by a low energy electron beam were analyzed using a new method that consists in measuring the second crossover energy ...
Pairing and unpairing electron densities in organic systems: Two-electron three center through space and through bonds interactions
(American Institute of Physics, 2014-05)
Two-electron three-center bonding interactions in organic ions like methonium (CH + 5 ), ethonium (C2H + 7 ), and protonated alkanes n−C4H + 11 isomers (butonium cations) are described and characterized within ...