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Brillouin scattering on noncrystalline ZnCl2 (1987)

Soltwisch, M. ; Sukmanowski, J. ; Quitmann, D.

College Park, Md. : American Institute of Physics (AIP)

The Journal of Chemical Physics 86 (1987), S. 3207-3215

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ISSN: 1089-7690

Source: AIP Digital Archive

Topics: Physics , Chemistry and Pharmacology

Notes: Measurements of Brillouin scattering spectra from liquid and glassy (300–600 °C, 25–130 °C) ZnCl2 are reported. High resolution Fabry–Perot spectroscopy has been used, and temperature as well as momentum transfer have been varied so as to go completely across the condition (Brillouin frequency)⋅(characteristic relaxation time)=1, where very non-Lorentzian spectral shapes are observed. They are fully described by viscoelastic theory, i.e., a Mori-form including fourth moment, two sound velocities, and relaxation times. Connection with current ideas on glass-forming liquids is made.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.452031

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