Search results for "Maximum density"

showing 3 items of 3 documents

Conductance of potassium halides near the temperature of maximum density of water

1981

The conductances of dilute aqueous solutions of KCl, KBr, and KI have been measured over the temperature range 2 to 8°C and have been analyzed by the Fuoss-Hsia equation. The ionic Walden products at infinite dilution have been discussed in terms of local viscosity. The temperature dependence of these products suggest that near the temperature of maximum density of water, the structure-breaking ability of these ions changes in a regular way.

Aqueous solutionChemistryBiophysicsAnalytical chemistryIonic bondingHalideConductanceAtmospheric temperature rangeBiochemistryDilutionViscosityMaximum densityPhysical chemistryPhysical and Theoretical ChemistryMolecular BiologyJournal of Solution Chemistry
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Broken symmetries in the reconstruction of ν=1 quantum Hall edges

1999

Spin-polarized reconstruction of the v=1 quantum Hall edge is accompanied by a spatial modulation of the charge density along the edge. We find that this is also the case for finite quantum Hall droplets: current spin density functional calculations show that the so-called Chamon-Wen edge forms a ring of apparently localized electrons around the maximum density droplet (MDD). The boundaries of these different phases qualitatively agree with recent experiments. For very soft confinement, Chern-Simons Ginzburg-Landau theory indicates formation of a non-translational invariant edge with vortices (holes) trapped in the edge region.

PhysicsCondensed Matter - Mesoscale and Nanoscale PhysicsCondensed matter physicsFOS: Physical sciencesCharge densityElectronInvariant (physics)Quantum Hall effectCondensed Matter PhysicsAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsVortexMesoscale and Nanoscale Physics (cond-mat.mes-hall)Homogeneous spaceMaximum densitySpin densityPhysica E: Low-dimensional Systems and Nanostructures
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Quantum Dots in Magnetic Fields: Phase Diagram and Broken Symmetry at the Maximum-Density-Droplet Edge

1999

Quantum dots in magnetic fields are studied within the current spin-density-functional formalism avoiding any spatial symmetry restrictions of the solutions. We find that the maximum-density droplet reconstructs into states with broken internal symmetry: The Chamon-Wen edge coexists with a modulation of the charge density along the edge. The phase boundaries between the polarization transition, the maximum-density droplet, and its reconstruction are in agreement with recent experimental results.

PhysicsCondensed matter physicsInternal symmetryQuantum dotGeneral Physics and AstronomyCharge densityMaximum densitySymmetry breakingPolarization (waves)Magnetic fieldPhase diagram
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