%0 Conference Paper
%A Frielinghaus, Henrich
%T Criticality of Quasi-Binary Complex Fluids with and without Confinement
%I ISIS
%M FZJ-2025-02946
%D 2025
%X The Ising criticality of quasi-binary fluids is investigated using SANS. For confinement, either an antagonistic salt or a surfactant is added. The charge density waves that are locally planar encapsulate the binary fluid between the wavefronts and thus make the criticality 2-dimensional. Using DLS and NSE, the dynamic criticality besides the structural criticality in terms of the forward scattering and the correlation length are observed. A master curve of the diffusion constant as a function of length scales was obtained. When looking at the high-Q end of the SANS data, the critical correlation function exponent eta was obtained that can also be compared via a scaling relation to the structural criticality. The 2-dimensionally confined system lets us assume a directional exponent eta. Finally, in latest SANS measurements on ZOOM with a magnetic field, the domains were aligned and a directional exponent eta was obtained. The scaling relation rationalizes the exponent eta for the 2-dimensional confinement.
%B UK Small Angle Scattering User Meeting 2025
%C 16 Jun 2025 - 18 Jun 2025, Didcot (UK)
Y2 16 Jun 2025 - 18 Jun 2025
M2 Didcot, UK
%F PUB:(DE-HGF)6
%9 Conference Presentation
%U https://juser.fz-juelich.de/record/1043638