electron density


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electron density

Symbol: n e. The number of electrons per unit volume (e.g. per cubic meter) of the interstellar medium or some other medium.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006

electron density

[i′lek‚trän ′den·səd·ē]
(physics)
The number of electrons in a unit volume.
When quantum-mechanical effects are significant, the total probability of finding an electron in a unit volume.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
FIELDS will take measurements of the electric and magnetic fields, measure the electron density, and capture information about the temperature.
They determine the dynamics of electron density distribution in response to perturbation such as external electric field and electron density gradient.
Research is ongoing for indium-aluminum-gallium nitride (InAlGaN) HEMTs for the next generation GaN HEMT that would contribute to increased current, as InAlGaN HEMTs can increase electron density within the transistor.
Parr, Development of the Colle-Salvetti Correlation-Energy Formula into a Functional of the Electron Density, Phys.
The electron density distribution and refractive index distribution of the plasma are nonuniform.
where [[omega].sub.p] is the plasma frequency, v is the electron collision frequency, [omega] is the angular frequency of the propagating electromagnetic wave, n is the electron density, e is the electron's charge, m is its mass, and 0 is the permittivity of free space.
The transformation of chargers within the adsorbed [H.sub.2] molecule and sensing material was studied through the calculation of electron density difference.
Critical points were searched via topology analysis of the electron density. In topology analysis language, the points at which the gradient of the electron density goes to zero (except at infinity) are known as critical points (CPs).
For DSSCs, the ICT process facilitates the aggregation of electrons in the acceptor moiety, and the enhanced electron density in the acceptor moiety can enhance the electronic coupling effect between acceptor and semiconductor.
The most probable interpretation is that for weak hydrogen bonds the long-range electrostatic forces act far beyond the van der Waals radii cutoff [31, 32] while for strong and very strong interactions the additional forces related to electron density shifts are more important; these forces lead to the enormous shortening of the H ...
The chemical hardness n can be thought as a resistance of a molecule to exchange electron density with the environment.

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