Results 211 to 220 of about 1,376,022 (258)

Electron heating in GaAs due to electron-electron interactions

Physical Review B, 1994
The interactions of hot electrons in semiconductor layers are usually studied assuming the scattering mechanisms affect only the injected hot electron distribution, leaving the cold electrons and the lattice in thermal equilibrium. However, if the energy transfer from hot to cold electrons is sufficiently large the cold electron distribution can be ...
Moty Heiblum, B. Brill
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Electrons and Electron Beams

1984
When a plastic ruler is placed near some very tiny pieces of paper, it will not have any effect on them. However, if the ruler is rubbed with a duster, it is found that the pieces of paper are attracted to the ruler. This difference in behaviour is explained by saying that the ruler has become electrically charged when rubbed with the duster.
A. Clark, H. J. P. Keighley, Martin Harrison, Frank McKim   +3 more
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Electronic detectors for electron microscopy

Quarterly Reviews of Biophysics, 2011
AbstractElectron microscopy (EM) is an important tool for high-resolution structure determination in applications ranging from condensed matter to biology. Electronic detectors are now used in most applications in EM as they offer convenience and immediate feedback that is not possible with film or image plates.
Greg McMullan, A.R. Faruqi
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Electron–electron and electron–positron bremsstrahlung

Radiation Physics and Chemistry, 2006
Abstract The bremsstrahlung emitted in electron–electron (e–e) and electron–positron (e - –e + ) collisions is investigated. After a short description of the kinematics, cross sections exact to lowest-order perturbation theory are presented and compared with available approximations, and experiments on the two processes are ...
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Electron—Electron Interaction and Electron Correlation

2000
The problem of electronic states in a solid is a many-body problem of a macroscopic number of particles since the electrons interact with each other through Coulomb repulsion. Since it is obviously impossible to solve such a formidable problem exactly, one has to resort to approximate methods.
Nobuo Tsuda, Keiichiro Nasu, Kiiti Siratori, Atsushi Fujimori   +3 more
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Electronic detectors for electron microscopy

Current Opinion in Structural Biology, 2007
Due to the increasing popularity of electron cryo-microscopy (cryoEM) in the structural analysis of large biological molecules and macro-molecular complexes and the need for simple, rapid and efficient readout, there is a persuasive need for improved detectors.
Richard Henderson, A.R. Faruqi
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On the electron-electron counterbalance hole

The Journal of Chemical Physics, 2008
When a many-electron system has spatial inversion symmetry, the electron-electron counterbalance hole implies that two electrons with parallel spins cannot be at opposite positions with respect to the inversion center, and its presence was pointed out in the literature [T. Koga, J. Chem. Phys.
Masahiro Sekiya, Toshikatsu Koga
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Electron screening and electron–electron scattering mechanisms

Journal of Electron Spectroscopy and Related Phenomena, 2013
Abstract The roles of binary and multiple scattering are considered in the context of electron scattering and diffraction on the W(1 1 0) and W(1 1 0) + O(1 × 1) surfaces for energies from 10 to 40 eV. We define a binary scattering mechanism as the incident electron interacting with the field of a valence electron with conservation of the total ...
O.M. Artamonov, S.N. Samarin, J.F. Williams   +2 more
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Electron-Electron Interaction

2018
The potential a valence electron feels in a crystal is not a predetermined one. The electrons interact with each other by Coulomb forces and the one-electron theory is to be understood at most in the sense of a self-consistent approximation. Diagrammatic perturbation theory may lead to higher many-body corrections. In a semiconductor an electron in the
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The Electron-Electron Interaction

1991
In recent years, as device sizes have become smaller and carrier densities have become larger, the role of electron-electron scattering and screening have become very important in transport within semiconductor devices. The main difficulty in dealing with the electron-electron interaction lies in the nonlinear behavior of the interaction potential and ...
David K. Ferry, Robert O. Grondin
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