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@ARTICLE{Frielinghaus:1006604,
author = {Frielinghaus, Henrich and Dubey, Purushottam and Wu, Baohu
and Odom, Mary and Zheng, Feifei and Shin, Eunjoo and
Zolnierczuk, Piotr and Holderer, Olaf and Förster, Stephan
and Heiden-Hecht, Theresia},
title = {{E}xperimental critical dynamics of 3-methyl
pyridine/{D}$_2${O} mixtures without and with antagonistic
salt},
journal = {Physical review research},
volume = {5},
number = {2},
issn = {2643-1564},
address = {College Park, MD},
publisher = {APS},
reportid = {FZJ-2023-01741},
pages = {023053},
year = {2023},
abstract = {We observed the criticality in the structure and dynamics
of a 3d- and 2d-Ising system consisting of 3-methyl pyridine
(3MP) / D2O without and with antagonistic salt. We could
describe both dynamic criticalities by the Kawasaki
crossover function. The dynamic critical exponent was
z=0.063±0.020 and 0.005±0.019 for 3 and 2 dimensions,
which confirms earlier observations in the 3d case and
confirms expectations in the 2d case. The amplitudes of the
critical dynamics are governed by the bare viscosities
experimentally, and by the coefficient R theoretically
(latter is proportional to (4−d)−1 with the
dimensionality d). This finding is in accordance with the
lubrication effect that is also connected to lamellar
systems of the Brazovskii criticality . This lubrication
effect is tightly connected to a laminar flow enforced by
the domain structure and also holds for our 2d-Ising system.
The experimental techniques employed were small angle
neutron and x-rays scattering (SANS and SAXS) for the static
criticality and dynamic light scattering (DLS) and neutron
spin echo spectroscopy (NSE) for the critical dynamics.
Furthermore, the criticality of the viscosities was
measured.},
cin = {JCNS-FRM-II / JCNS-4 / JCNS-1 / MLZ},
ddc = {530},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-4-20201012 / I:(DE-Juel1)JCNS-1-20110106 /
I:(DE-588b)4597118-3},
pnm = {6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ)
(POF4-6G4) / 632 - Materials – Quantum, Complex and
Functional Materials (POF4-632)},
pid = {G:(DE-HGF)POF4-6G4 / G:(DE-HGF)POF4-632},
experiment = {EXP:(DE-MLZ)KWSX-20231024},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000981072100001},
doi = {10.1103/PhysRevResearch.5.023053},
url = {https://juser.fz-juelich.de/record/1006604},
}