Acoustic behaviour of normal and densified vitreous GeO2
نویسندگان
چکیده
منابع مشابه
Rheological behaviour of vitreous humour
The vitreous humour (VH) is a complex biofluid that occupies a large portion of the eyeball between the lens and the retina, and exhibits non-Newtonian rheological properties that are key for its function in the eye. It is often possible to distinguish two different phases in VH, known as liquid and gel phases (Sebag J Eye 1: 254–262, 1987). In this work, we present a detailed rheological chara...
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The THz spectrum of density fluctuations, S(Q, ω), of vitreous GeO2 at ambient temperature was measured by inelastic x-ray scattering from ambient pressure up to pressures well beyond that of the known α-quartz to rutile polyamorphic (PA) transition. We observe significant differences in the spectral shape measured below and above the PA transition, in particular, in the 30-80 meV range. Guided...
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ژورنال
عنوان ژورنال: Philosophical Magazine
سال: 2008
ISSN: 1478-6435,1478-6443
DOI: 10.1080/14786430802247205