Results 241 to 250 of about 3,257,003 (296)

Electron-Electron Interaction in Warm Electrons

Journal of the Physical Society of Japan, 1962
Effects of the electron-electron interaction on the distribution function of warm electrons in semiconductors are investigated by the Born approximation with a screened Coulomb potential. The theory shows that the effect of the e - e interaction is remarkable, unless the density of the electrons is quite small.
Akira Hasegawa, Jiro Yamashita
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Electron-electron scattering in hot electrons

Semiconductor Science and Technology, 1992
The influence of electron-electron scattering on the parameters of a hot electron system in a semiconductor has been analysed. The strongest influence has been observed in the slightly heated electron system (in the case of so-called 'warm electrons') at the lattice temperature T approximately=To/5(To being the characteristic temperature of the optical
S Dedulewich, Z Kancleris, A Matulis, Yu Pozhela   +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.
A R, Faruqi, G, McMullan
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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.
A R, Faruqi, R, Henderson
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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.
Toshikatsu, Koga, Masahiro, Sekiya
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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, Atsushi Fujimori, Kiiti Siratori   +3 more
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Electronic markets and electronic hierarchies in the context of electronic commerce

Proceedings of the 7th international conference on Electronic commerce - ICEC '05, 2005
According to the theory of Transaction Cost Economics, markets and hierarchies are two basic and alternative models of organization. In the environment of Electronic Commerce, markets and hierarchies have been transforming into Electronic markets (EMs) and Electronic Hierarchies (EHs).
Hongli Hu, Ping Li
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Electron–electron coincidence spectroscopies at surfaces

Journal of Electron Spectroscopy and Related Phenomena, 2002
In the past 20 years, a steadily increasing number of electron-electron coincidence experiments on atoms and molecules have contributed to a deeper understanding of electron-electron correlation effects. In more recent years this technique has been extended to the study of solid surfaces.
Stefani G, Iacobucci S, RUOCCO, Alessandro, Gotter R.   +3 more
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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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Calculation of Electron-Electron Scattering

Physical Review, 1958
The matrix elements involved in the calculation of electron-electron and positron-electron scattering are written down explicitiy for a complete set of initial and final spin states of the particles. This permits the evaluation of the cross section for any polarization combination desired, with a minimum of labor. (auth)
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