6533b835fe1ef96bd129f703
RESEARCH PRODUCT
Correlation spectroscopy in molten and supercooled antimony trichloride.
Norberto MicaliGiacomo MaisanoEugenio CaponettiFrancesco MallamaceCirino VasiRoberto Triolosubject
Antimony trichloridePhysicsCondensed matter physicsIntermolecular forceRelaxation (NMR)ThermodynamicsActivation energyAtomic and Molecular Physics and OpticsArrhenius plotchemistry.chemical_compoundchemistryCorrelation functionSupercoolingEnergy (signal processing)description
Correlation spectroscopy measurements performed on molten and supercooled antimony trichloride with the homodyne technique show correlation functions that have a nonexponential behavior. Two well-defined distributions of correlation times can be observed in different temporal regions. This behavior is discussed in terms of a structural relaxation of clusters dynamically formed by intermolecular and interchain bonds. The Arrhenius plot of these correlation times shows a linear behavior with the same activation energy for both. In contrast, the activation energy of shear viscosity has a different value, showing that the processes determining the temperature behavior of \ensuremath{\tau} and ${\mathrm{\ensuremath{\eta}}}_{\mathit{s}}$ are different.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1990-03-01 | Physical review. A, Atomic, molecular, and optical physics |