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Wavenumber dependence of structural alpha relaxation in a molecular liquid

A. Toelle·H. Schober·J. Wuttke·F. Fujara
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Abstract

Structural alpha 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. As expected from mode coupling theory, these variations are correlated with the static structure factor. Even far above the melting point, alpha relaxation remains non-exponential.

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BibTeXRIS

A. Toelle, H. Schober, J. Wuttke, F. Fujara. 1998-01-08. Wavenumber dependence of structural alpha relaxation in a molecular liquid. https://doi.org/10.1007/s100510050439

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