Collective dynamics of simple liquids: A mode-coupling description
We use the mode-coupling theory (MCT), which has been highly successful in accounting for the anomalous relaxation behaviour near the liquid-to-glass transition, for describing the dynamics of monatomic (i.e. simple) liquids away from the glass formation regime. We find that the dynamical structur...
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| Datum: | 2008 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
Інститут фізики конденсованих систем НАН України
2008
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| Schriftenreihe: | Condensed Matter Physics |
| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/119002 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Collective dynamics of simple liquids: A mode-coupling description / W. Schirmacher, H. Sinn // Condensed Matter Physics. — 2008. — Т. 11, № 1(53). — С. 127-137. — Бібліогр.: 31 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | We use the mode-coupling theory (MCT), which has been highly successful in accounting for the anomalous
relaxation behaviour near the liquid-to-glass transition, for describing the dynamics of monatomic (i.e. simple)
liquids away from the glass formation regime. We find that the dynamical structure factor predicted by MCT
compares well to experimental findings and results of computer simulations. The memory function exhibits a
two-step decay as found frequently in experimental and simulation data. The long-time relaxation regime, in
which the relaxation rate strongly depends on the density and is identified as the α relaxation. At high density
this process leads the glass instability. The short-time relaxation rate is fairly independent of density. |
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