The Journal of Chemical Physics · 1968 · 103 citations · 5 references
Natural SciencesChemistryPhysicsCondensed Matter PhysicsPhysical ChemistrySolid State PhysicsHydrogen AtomKinetics Of Phase TransformationsPhase ChangePhase Transition AnalysisPhase TransitionsSolid-state Phase TransitionsCold Neutron ScatteringConductivityHigh-temperature Phase RelationsInfrared Absorption SpectroscopyPhase Transition TemperatureProton ConductivityThermal Analysis Of Phase TransitionsThermogravimetric Data Analysis
The high-temperature phase transition in KH2PO4 has been investigated by differential thermal analysis, thermogravimetric analysis, proton magnetic resonance and relaxation, infrared spectroscopy, and x-ray and quasielastic cold-neutron scattering. The transition is not connected with a static breaking up of the hydrogen-bond network but rather with the onset of disordered hindered rotation of the H2PO4 groups around all three axes. It seems that rotation of H2PO4 groups is as well rate determining for the proton conductivity of this crystal.
5
Proton Dynamics in Hydrogen-Bonded Ferroelectrics
Y. Imry, I. Pelah, Edzard Wiener · The Journal of Chemical Physics · 1965 · 72 citations
Natural Sciences, Chemistry, Physics +16
Isotope effect in the high temperature phase transition of KH2PO4
J. Grinberg, S. Levin, I. Pelah et al. · Solid State Communications · 1967 · 52 citations