Absence of anomalous dispersion features in the inelastic neutron scattering spectra of water at both sides of the melting transition

1995 ◽  
Vol 51 (3) ◽  
pp. 2250-2262 ◽  
Author(s):  
F. J. Bermejo ◽  
M. Alvarez ◽  
S. M. Bennington ◽  
R. Vallauri
Keyword(s):  
Neutron Scattering ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
Anomalous Dispersion ◽  
Melting Transition ◽  
Scattering Spectra

Infrared, Raman, and Inelastic Neutron Scattering Spectra of Dodecahedrane:  anIhMolecule inThSite Symmetry

2005 ◽  
Vol 109 (15) ◽  
pp. 3418-3424 ◽  
Author(s):  
Bruce S. Hudson ◽  
Damian G. Allis ◽  
Stewart F. Parker ◽  
Anibal J. Ramirez-Cuesta ◽  
Henryk Herman ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
Scattering Spectra

Polymer Relaxational Dynamics Associated With Ionic Conduction in Confined Geometry

2002 ◽  
Vol 756 ◽  
Author(s):  
J.-M. Zanotti ◽  
L. J. Smith ◽  
E. Giannelis ◽  
P. Levitz ◽  
D. L. Price ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Ionic Conduction ◽  
Inelastic Neutron Scattering ◽  
Mean Square Displacement ◽  
Lattice Relaxation ◽  
Inelastic Neutron ◽  
Spin Lattice Relaxation ◽  
Scattering Data ◽  
Melting Transition ◽  
Time Data

ABSTRACTResults of a quasi-elastic incoherent neutron scattering study of the influence of confinement on polyethylene oxide (PEO) and (PEO)8Li+[(CF3SO2)2N]- (or (POE)8LiTFSI) dynamics are presented. The confining media is Vycor, a silica based hydrophilic porous glass. We observe a strong slowing down of the bulk polymer dynamics under presence of Li salt. The confinement also affects dramatically the apparent mean-square displacement of the polymer. As supported by DSC measurements, the PEO melting transition at 335 K is strongly attenuated under confinement, suggesting that confinement modifies the global structure of the system, increasing the fraction of amorphous PEO by respect to crystalline phase. Local relaxational PEO dynamics is successfully described by the DLM (Dejean-Laupretre-Monnerie) model usually used to interpret NMR spin-lattice relaxation time data. The scattering vector dependence of the correlation times deduced from inelastic neutron scattering data is found to obey a power-law dependence. DSC and preliminary ionic conduction measurements are also presented.

Intensities in inelastic neutron scattering spectra: A test of recent theory

1983 ◽  
Vol 77 (1) ◽  
pp. 145-151 ◽  
Author(s):  
Joseph Howard ◽  
Brian C. Boland ◽  
John Tomkinson
Keyword(s):  
Neutron Scattering ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
Recent Theory ◽  
Scattering Spectra

Dynamics of CrystallineN-Methylacetamide:  Temperature Dependence of Infrared and Inelastic Neutron Scattering Spectra

1998 ◽  
Vol 102 (32) ◽  
pp. 6177-6183 ◽  
Author(s):  
Mariette Barthes ◽  
Heloisa N. Bordallo ◽  
Juergen Eckert ◽  
Olivier Maurus ◽  
Giorgio de Nunzio ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Temperature Dependence ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
Scattering Spectra

Debye-Waller factors in incoherent inelastic neutron scattering spectra of molecular polycrystals

1984 ◽  
Vol 53 (2) ◽  
pp. 323-332 ◽  
Author(s):  
J. Howard ◽  
J.M. Nicol ◽  
B.C. Boland ◽  
J. Tomkinson ◽  
J. Eckert ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Inelastic Neutron Scattering ◽  
Inelastic Neutron ◽  
Scattering Spectra
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