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Wavenumber dependence of structural relaxation in a molecular liquid

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Abstract:

Structural relaxation in liquid orthoterphenyl is studied by means of coherent neutron time-of-flight and backscattering spectroscopy over a large temperature range. Not only amplitude and relaxation time but also the spectral line shape show a significant variation with wavenumber. These variations are correlated with the static structure factor, in qualitative accord with mode-coupling results for simple liquids. Even far above the melting point, relaxation remains non-exponential.

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Received: 5 January 1998 / Revised: 3 April 1998 / Accepted: 19 June 1998

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Tölle, A., Wuttke, J., Schober, H. et al. Wavenumber dependence of structural relaxation in a molecular liquid. Eur. Phys. J. B 5, 231–236 (1998). https://doi.org/10.1007/s100510050439

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  • DOI: https://doi.org/10.1007/s100510050439

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