Results 301 to 310 of about 1,973,963 (357)

Electron-electron interaction in ballistic electron beams

Physical Review B, 1995
The transport of ballistic electrons emitted and detected by adjacent point contacts in a two-dimensional electron gas (2DEG) in the system GaAs/${\mathrm{Al}}_{\mathit{x}}$${\mathrm{Ga}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$As was measured at 1.2 K as a function of the emitter current.
Th. Klocke, A. Förster, Hans Lüth, B. Lengeler, F. Müller, Th. Schäpers, Joerg Appenzeller   +6 more
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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
Yu. K. Pozhela, A Matulis, S Dedulewich, Z Kancleris   +3 more
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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.
Jiro Yamashita, Akira Hasegawa
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Electron-electron interaction in projectile electron loss

Physical Review A, 1991
In ion-atom collisions where the projectile is ionized, target electrons act not only coherently by screening the target nucleus but they may also act incoherently by directly ejecting a projectile electron. This electron-electron interaction should be relatively most important for targets that have a low nuclear charge, since the cross section for a ...
Jose R. Alonso, A. Belkacem, A. Belkacem, Bruce Rude, N. Guardala, Harvey Gould, Peter Thieberger, G.F. Krebs, D. W. Spooner, M. A. McMahan, K. Street, H. P. Hülskötter, E. Dillard, M. E. Rhoades-Brown, L. Blumenfeld, W. E. Meyerhof, H. E. Wegner, B. Feinberg, J. Schweppe   +18 more
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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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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
openaire   +3 more sources