The study of diffusive motion in bitumen compounds by quasielastic neutron scattering

2004 ◽  
Vol 350 (1-3) ◽  
pp. E455-E458 ◽  
Author(s):  
V Tripadus ◽  
M Popovici ◽  
M Peticila ◽  
L Craciun ◽  
O Muresan
Keyword(s):  
Neutron Scattering ◽  
Diffusive Motion ◽  
Quasielastic Neutron ◽  
Quasielastic Neutron Scattering

Diffusive Motion of Alkali Atoms in Graphite: A Quasielastic Neutron Scattering Study

1982 ◽  
Vol 20 ◽  
Author(s):  
H. Zabel ◽  
A. Magerl ◽  
J.J. Rush ◽  
A.J. Dianoux
Keyword(s):  
Neutron Scattering ◽  
Diffusive Motion ◽  
Lorentzian Line ◽  
Alkali Atoms ◽  
Dynamical Aspect ◽  
Quasielastic Neutron ◽  
Scattering Study ◽  
Quasielastic Neutron Scattering ◽  
Neutron Scattering Study ◽  
Increasing Temperature

ABSTRACTWe have studied the diffusive motion of alkali atoms in thermodynamic equilibrium in RbC24 by quasielastic neutron scattering. The neutron spectra show Lorentzian line profiles. The widths increase with increasing temperature. In addition a ‘de Gennes’ narrowing is observed at Q=1.2 Å-1, which coincides with the first peak in the intercalant structure factor. The narrowing becomes more pronounced at higher temperatures in contrast to a normal liquid. The data can be interpreted by the motion of clusters of alkali atoms rather than by a liquid type motion. This adds a dynamical aspect to the “floating solid’ as described by Nelson and Halperin for the melting of a 2-dimensional solid.

scholarly journals High Hydrogen Mobility in an Amide–Borohydride Compound Studied by Quasielastic Neutron Scattering

2021 ◽  
pp. 2100620
Author(s):  
Neslihan Aslan ◽  
Gökhan Gizer ◽  
Claudio Pistidda ◽  
Martin Dornheim ◽  
Martin Müller ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
High Hydrogen ◽  
Quasielastic Neutron ◽  
Quasielastic Neutron Scattering
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