scholarly journals Interplay between the Reorientational Dynamics of the B3H8– Anion and the Structure in KB3H8

2021 ◽  
Vol 125 (7) ◽  
pp. 3716-3724 ◽  
Author(s):  
M. S. Andersson ◽  
J. B. Grinderslev ◽  
X.-M. Chen ◽  
X. Chen ◽  
U. Häussermann ◽  
...  
Keyword(s):  
Reorientational Dynamics

Reorientational dynamics of highly asymmetric binary non-polymeric mixtures – a dielectric spectroscopy study

2021 ◽  
Vol 23 (12) ◽  
pp. 7200-7212 ◽  
Author(s):  
Thomas Körber ◽  
Felix Krohn ◽  
Christian Neuber ◽  
Hans-Werner Schmidt ◽  
Ernst A. Rössler
Keyword(s):  
Dielectric Spectroscopy ◽  
Spectroscopy Study ◽  
Concentration Dependences ◽  
Temperature Dependences ◽  
Reorientational Dynamics

Two separated relaxations α1 and α2 with different temperature dependences are identified in the mixtures. They are attributed to the dynamics associated with the high-Tg (α1) and the low-Tg component (α2) with distinct Tg concentration dependences.

Reorientational Dynamics of Amide Ions in Isotypic Phases of Strontium and Calcium Amide. 1. Neutron Diffraction Experiments

1998 ◽  
Vol 102 (6) ◽  
pp. 931-940 ◽  
Author(s):  
J. Senker ◽  
H. Jacobs ◽  
M. Müller ◽  
W. Press ◽  
P. Müller ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Reorientational Dynamics

scholarly journals Importance of reorientational dynamics for the charge transport in ionic liquids

2018 ◽  
Vol 98 (5) ◽  
Author(s):  
P. Sippel ◽  
S. Krohns ◽  
D. Reuter ◽  
P. Lunkenheimer ◽  
A. Loidl
Keyword(s):  
Ionic Liquids ◽  
Charge Transport ◽  
Reorientational Dynamics

Reorientational dynamics in a liquid organized system: Brillouin and depolarized Rayleigh scattering experiments in 1-octanol

2001 ◽  
Vol 99 (17) ◽  
pp. 1493-1502 ◽  
Author(s):  
MARCO PAOLANTONI ◽  
PAOLA SASSI ◽  
ASSUNTINA MORRESI ◽  
ROSARIO SERGIO CATALIOTTI
Keyword(s):  
Rayleigh Scattering ◽  
Reorientational Dynamics

Universal two-state reorientational dynamics of diatomic hydrides in fcc salt crystals

1996 ◽  
Vol 54 (13) ◽  
pp. 9204-9212 ◽  
Author(s):  
C. E. Mungan ◽  
R. Lai ◽  
A. J. Sievers
Keyword(s):  
Salt Crystals ◽  
Reorientational Dynamics

scholarly journals Peculiarities in the Director Reorientation and the NMR Spectra Evolution in a Nematic Liquid Crystals under the Effect of Crossed Electric and Magnetic Fields

Crystals ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 262 ◽  
Author(s):  
Alex V. Zakharov ◽  
Izabela Sliwa
Keyword(s):  
Nematic Phase ◽  
Viscosity Coefficient ◽  
Threshold Value ◽  
Periodic Patterns ◽  
Director Field ◽  
Electric And Magnetic Fields ◽  
Spatially Periodic ◽  
Rotational Viscosity ◽  
Director Reorientation ◽  
Reorientational Dynamics

The illustrative description of the field-induced peculiarities of the director reorientation in the microsized nematic volumes under the effect of crossed magnetic B and electric E fields have been proposed. The most interesting feature of such configuration is that the nematic phase becomes unstable after applying the strong E . The theoretical analysis of the reorientational dynamics of the director field provides an evidence for the appearance of the spatially periodic patterns in response to applied large E directed at an angle α to B . The feature of this approach is that the periodic distortions arise spontaneously from a homogeneously aligned nematic sample that ultimately induces a faster response than in the uniform mode. The nonuniform rotational modes involve additional internal elastic distortions of the conservative nematic system and, as a result, these deformations decrease of the viscous contribution U vis to the total energy U of the nematic phase. In turn, that decreasing of U vis leads to decrease of the effective rotational viscosity coefficient γ eff ( α ) . That is, a lower value of γ eff ( α ) , which is less than one in the bulk nematic phase, gives the less relaxation time τ on ( α ) ∼ γ eff ( α ) , when α is bigger than the threshold value α th . The results obtained by Deuterium NMR spectroscopy confirm theoretically obtained dependencies of τ on ( α ) on α .

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