Results 191 to 200 of about 8,142 (229)

Molecular motion of a nanoscopic moonlander via translations and rotations of triphenylphosphine on graphite. [PDF]

Commun Chem
Tamtögl A, Sacchi M, Schwab V, Koza MM, Fouquet P.   +4 more
europepmc   +1 more source

A Vision for the Future of Neutron Scattering and Muon Spectroscopy in the 2050s. [PDF]

ACS Phys Chem Au
Parker SF, Baker PJ, McGreevy R.
europepmc   +1 more source

In-situ Raman spectroscopic analysis of phase transition temperatures in silica interacting with water and NaCl solutions. [PDF]

Sci Rep
Pamula K, Pophali A, Gersappe D, Kim T.
europepmc   +1 more source

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Dynamics of collagen hydration by quasielastic neutron scattering

Physica B: Condensed Matter, 2000
Abstract QENS spectra from 52% H 2 O-hydrated collagen fibres ( T =276–321 K) were modelled by three-component scattering laws including small central peak broadenings. These give diffusion coefficients for mobile H 2 O of ∼5×10 −6  cm 2 /s, with activation energy ∼2 kcal/mol. The broad components relate to localised modes.
Middendorf, H.D., Traore, A., Foucat, Loic, Renou, J.P., Ferrand, M.   +4 more
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Quasielastic neutron scattering by superionic strontium chloride [PDF]

Journal of Physics C: Solid State Physics, 1978
The scattering, from powder and single crystal samples, appears only above the superionic transition temperature, 1000K. The integrated intensity is found to be strongly dependent on the direction and magnitude of the scattering vector, Q, (which suggests the scattering is coherent) but does not exhibit the periodicity of the reciprocal lattice.
M. T. Hutchings, R.E. Lechner, Jørgen Kjems, M H Dickens   +3 more
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Neutron quasielastic scattering by (CH3NH3)5Bi2Cl11

Physica B: Condensed Matter, 1997
Abstract (CH3NH3)+-cation rotation in crystalline (CH3NH3)5Bi2Cl11 was studied by the QNS. The following (no doubt simplified) models were considered: 1. 1. All cations are equivalent and rotate as a whole around C-N axes 2. 2. Majority of cations behave as in point (1) and the remaining ones do not move (for the neutron observation window).
Jan Krawczyk, Ryszard Jakubas, T. Stanek, J. Mayer, O. Steinsvoll, J.A. Janik   +5 more
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Quasielastic neutron scattering in condensed oxygen

Physica B: Condensed Matter, 1992
The quasielastic spectra of liquid and plastic-crystalline oxygen are shown to be dominated by the magnetic response. An approximate separation of the nuclear and magnetic responses from the total, unpolarized neutron double differential cross-sections is achieved by means of a subtraction of the structural contributions calculated from a Molecular ...
Francisco Javier Bermejo, José-Luis Martínez, Federico Mompean, Eduardo Enciso, Mar García-Hernández, A. Chahid   +5 more
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Quasielastic neutron scattering by hydrogen in niobium

Journal of Physics and Chemistry of Solids, 1970
Abstract The diffusion of hydrogen in niobium has been studied by quasielastic neutron scattering measuring the width of the quasi-elastic line as a function of the scattering vector. The measurements have been performed at concentrations of 3·2 at.% at 200° and 300°C, and at 33 at.% hydrogen between 100° to 300°C for many temperatures, especially ...
T. Springer, G. Alefold, W. Gissler
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