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000019750 084__ $$2WoS$$aPhysics, Multidisciplinary
000019750 1001_ $$0P:(DE-HGF)0$$aNygard, K.$$b0
000019750 245__ $$aAnisotropic Pair Correlations and Structure Factors of Confined Hard-Sphere Fluids: An Experimental and Theoretical Study
000019750 260__ $$aCollege Park, Md.$$bAPS$$c2012
000019750 300__ $$a037802
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000019750 440_0 $$04925$$aPhysical Review Letters$$v108$$x0031-9007$$y3
000019750 500__ $$aThe experiment was carried out at the cSAXS beam line of the Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland. We thank the beam line staff for assistance. One of us (R. K.) gratefully acknowledges support from the Swedish Research council. The calculations in this work were supported by the Swedish National Infrastructure for Computing (SNIC 001-09-152) via PDC.
000019750 520__ $$aWe address the fundamental question: how are pair correlations and structure factors of hard-sphere fluids affected by confinement between hard planar walls at close distance? For this purpose, we combine x-ray scattering from colloid-filled nanofluidic channel arrays and first-principles inhomogeneous liquid-state theory within the anisotropic Percus-Yevick approximation. The experimental and theoretical data are in remarkable agreement at the pair-correlation level, providing the first quantitative experimental verification of the theoretically predicted confinement-induced anisotropy of the pair-correlation functions for the fluid. The description of confined fluids at this level provides, in the general case, important insights into the mechanisms of particle-particle interactions in dense fluids under confinement.
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000019750 7001_ $$0P:(DE-HGF)0$$aKjellander, R.$$b1
000019750 7001_ $$0P:(DE-HGF)0$$aSarman, S.$$b2
000019750 7001_ $$0P:(DE-HGF)0$$aChodankar, S.$$b3
000019750 7001_ $$0P:(DE-HGF)0$$aPerret, E.$$b4
000019750 7001_ $$0P:(DE-Juel1)130577$$aBuitenhuis, J.$$b5$$uFZJ
000019750 7001_ $$0P:(DE-HGF)0$$avan der Veen, J.F.$$b6
000019750 773__ $$0PERI:(DE-600)1472655-5$$a10.1103/PhysRevLett.108.037802$$gVol. 108, p. 037802$$p037802$$q108<037802$$tPhysical review letters$$v108$$x0031-9007$$y2012
000019750 8567_ $$uhttp://dx.doi.org/10.1103/PhysRevLett.108.037802
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