0000000000264304

AUTHOR

Markus Bier

showing 5 related works from this author

Electrostatic interactions in critical solvents

2011

The subtle interplay between critical phenomena and electrostatics is investigated by considering the effective force acting on two parallel walls confining a near-critical binary liquid mixture with added salt. The ion-solvent coupling can turn a non-critical repulsive electrostatic force into an attractive one upon approaching the critical point. However, the effective force is eventually dominated by the critical Casimir effect, the universal properties of which are not altered by the presence of salt. This observation allows a consistent interpretation of recent experimental data.

Casimir effectMaterials scienceCritical point (thermodynamics)Chemical physicsEffective forceCritical phenomenaGeneral Physics and AstronomySoft Condensed Matter (cond-mat.soft)FOS: Physical sciencesCondensed Matter - Soft Condensed MatterElectrostatics
researchProduct

Salt-induced microheterogeneities in binary liquid mixtures

2017

The salt-induced microheterogeneity (MH) formation in binary liquid mixtures is studied by small-angle x-ray scattering (SAXS) and liquid state theory. Previous experiments have shown that this phenomenon occurs for antagonistic salts, whose cations and anions prefer different components of the solvent mixture. However, so far the precise mechanism leading to the characteristic length scale of MHs has remained unclear. Here, it is shown that MHs can be generated by the competition of short-ranged interactions and long-ranged monopole-dipole interactions. The experimental SAXS patterns can be reproduced quantitatively by fitting to the derived correlation functions without assuming any speci…

Chemical Physics (physics.chem-ph)Phase transitionSpinodalMaterials scienceCharacteristic lengthCondensed Matter - Mesoscale and Nanoscale PhysicsSmall-angle X-ray scatteringScatteringThermodynamicsFOS: Physical sciences02 engineering and technologyCondensed Matter - Soft Condensed Matter010402 general chemistry021001 nanoscience & nanotechnology01 natural sciences0104 chemical sciencesSolventCondensed Matter::Soft Condensed MatterIonic strengthPhysics - Chemical PhysicsMesoscale and Nanoscale Physics (cond-mat.mes-hall)Soft Condensed Matter (cond-mat.soft)0210 nano-technologyPhase diagram
researchProduct

Interfacial premelting of ice in nano composite materials

2018

Physical chemistry, chemical physics 21, 3734 - 3741 (2019). doi:10.1039/C8CP05604H

Materials scienceGeneral Physics and AstronomyThermodynamics02 engineering and technologyAtmospheric temperature rangeVermiculite540010402 general chemistry021001 nanoscience & nanotechnologyPermafrost01 natural sciences0104 chemical sciencesPremeltingSoil waterddc:540Melting pointIce nucleusPhysical and Theoretical Chemistry0210 nano-technologyClay minerals
researchProduct

Correction: Surface induced smectic order in ionic liquids – an X-ray reflectivity study of [C22C1im]+[NTf2]−

2018

Physical chemistry, chemical physics 20(37), 24494 - 24495 (2018). doi:10.1039/C8CP91851A

Surface (mathematics)Materials scienceGeneral Physics and AstronomyThermodynamics540ReflectivityCondensed Matter::Soft Condensed MatterX-ray reflectivitychemistry.chemical_compoundchemistryddc:540Ionic liquidOrder (group theory)Physical and Theoretical ChemistryPhysical Chemistry Chemical Physics
researchProduct

Surface induced smectic order in ionic liquids - an X-ray reflectivity study of [C(22)C(1)im](+)[NTf2](-)

2017

Physical chemistry, chemical physics 19(39), 26651 - 26661 (2017). doi:10.1039/C7CP04852A

Polarized light microscopyMaterials scienceCondensed matter physicsScatteringGeneral Physics and Astronomy02 engineering and technology010402 general chemistry021001 nanoscience & nanotechnology54001 natural sciences0104 chemical sciencesX-ray reflectivityCondensed Matter::Soft Condensed Matterchemistry.chemical_compoundCrystallographychemistryMetastabilityPhase (matter)Ionic liquidddc:540Melting pointPhysical and Theoretical Chemistry0210 nano-technologySupercooling
researchProduct