Results 251 to 260 of about 1,006,658 (282)

Quasielastic light scattering in silicon [PDF]

Journal of Physics C: Solid State Physics, 1984
An investigation of the origin of quasielastic light scattering from silicon surfaces, first observed by Sandercock (1972, 1978) is described. Measurements have been made of the dependence of the quasielastic spectrum upon temperature, wavevector, doping level, and polarisation and intensity of incident light.
M. W. Anderson, R. T. Harley, Stuart Lindsay   +2 more
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Quasielastic electron scattering in quasiparticle approach

Physical Review C, 1992
A quasiparticle Hamiltonian, which includes the effects of Hartree-Fock and correlations, has been introduced through a parametrization of the radial shape of the effective mass ${\mathit{m}}^{\mathrm{*}}$(r)/m. Within this phenomenological quasiparticle approach the longitudinal and transverse response functions of quasielastic electron scatterings ...
Feng Da-chun, Ma Zhongyu
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Pionic effects in quasielastic electron scattering

Nuclear Physics A, 1990
Abstract Quasielastic electron scattering from nuclei at high momentum transfer and energy loss is approached using a model which incorporates specific classes of effects arising from the exchange of pions between nucleons in the nucleus. Building on the (purely nucleonic) relativistic Fermi gas responses, pionic effects in 1p1h correlation and meson
ALBERICO, Wanda Maria, T. W. Donnelly, MOLINARI, Alfredo   +2 more
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Investigation of the Setting Reaction in Magnesium Phosphate Ceramics with Quasielastic Neutron Scattering

, 2017
Magnesium phosphate ceramics are a class of acid–base cements for bioengineering and civil engineering applications. We report on quasielastic neutron scattering results focusing on the evolution of the state of water in the system during the setting ...
A. Viani, M. Zbiri, H. Bordallo, A. Gualtieri, P. Mácová   +4 more
semanticscholar   +1 more source

Quasielastic scattering of Li and Be on C

Nuclear Physics A, 2000
Abstract The quasielastic 11 Li, 12 Be + 12 C scattering at E/A≃60 MeV has been studied by adding a fitted polarisation potential to the folding model potential derived from 9 Li, 12 Be - 12 C and neutron- 12 C phenomenological optical potentials. For 11 Li + 12 C scattering
J.C. Pacheco, N. Vinh Mau
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Internal Viscosity and Quasielastic Scattering

The Journal of Chemical Physics, 1971
The hypotheses leading to internal viscosity of polymers are formulated in terms of the neutron incoherent quasielastic scattering law. The mean squared displacement, calculated in the free draining limit, is obtained as an analytical function of the internal viscosity parameter and is shown to decrease uniformly as this parameter increases.
J. P. Cotton, B. Farnoux, R. Bidaux, G. Jannink   +3 more
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Quasielastic neutron scattering studies on glass-forming ionic liquids with imidazolium cations.

Journal of Chemical Physics, 2015
Relaxation processes for imidazolium-based ionic liquids (ILs) were investigated by means of an incoherent quasielastic neutron scattering technique. In order to clarify the cation and anion effects on the relaxation processes, ten samples were measured.
M. Kofu, M. Tyagi, Y. Inamura, K. Miyazaki, O. Yamamuro   +4 more
semanticscholar   +1 more source

Proton dynamics in oxides: insight into the mechanics of proton conduction from quasielastic neutron scattering.

Physical Chemistry, Chemical Physics - PCCP, 2015
This article is concerned with the use of quasielastic neutron scattering as a technique for investigation of the dynamical properties of proton conducting oxides.
M. Karlsson
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Quasielastic Light Scattering from Diamond

Physical Review Letters, 1985
Strong quasielastic features have been found in light scattering from diamond in the frequency range 0 to \ifmmode\pm\else\textpm\fi{} 200 GHz and have been investigated as a function of wave-vector transfer ($Q$) and temperature ($T$). The evolution of a relatively narrow Lorentzian component (\ensuremath{\sim} 10 GHz) demonstrates for the first time ...
Howard E. Jackson, R. T. Harley, Stuart Lindsay, M. W. Anderson   +3 more
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Quasielastic Electron Scattering on 65Cu

AIP Conference Proceedings, 2007
The pioneer method for extraction of quasielastic part from the spectrum of scattered electrons is proposed. The essence of the method is in simultaneous multipole analysis of the mix of quasielastic and resonant formfactors. The identification of resonant peaks and quasielastic part of the formfactor have been held not in scattered electron spectra ...
V. Khvastunov, H.R. Schelin, S. A. Paschuk, V. Denyak   +3 more
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