Dynamics of lithium ions in spinel-type 7Li2MnCl4
| Autor: | H. D. Lutz, H. J. Steiner, G.A Eckstein, Götz Eckold, W Schmidt |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Quasielastic scattering
Chemistry Momentum transfer Spinel chemistry.chemical_element 02 engineering and technology General Chemistry engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Molecular physics 0104 chemical sciences Ion Quasielastic neutron scattering engineering Ionic conductivity General Materials Science Lithium 0210 nano-technology Single crystal Nuclear chemistry |
| Zdroj: | Solid State Ionics. 111:283-287 |
| ISSN: | 0167-2738 |
| Popis: | In order to determine the mechanism of the high ionic conductivity of inverse spinel-type Li 2 MnCl 4 , quasielastic neutron scattering measurements (incident wavelength 0.418 nm) of a 7 Li 2 MnCl 4 single crystal as a function of temperature (360, 428 and 552 K), and momentum transfer Q have been performed. The observed quasielastic intensity depends on temperature but hardly not on Q within the accessible range from 3.0 to 19.5 nm −1 . In particular, there is no indication for anisotropic behaviour. The data is interpreted as local motion of the lithium ions. The long-range translational motion of lithium ions causing the ionic conductivity takes place on a much longer time-scale and cannot be resolved under the present experimental conditions. |
| Databáze: | OpenAIRE |
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