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Now showing items 1-6 of 6
Article
Rotational dynamics in the plastic-crystal phase of ethanol: Relevance for understanding the dynamics during the structural glass transition
(American Physical Society, 2000)
The reorientational dynamics within the rotationally disordered cubic plastic phase of solid ethanol is investigated by means of the concurrent use of computer molecular dynamics and quasielastic neutron scattering. Motions ...
Article
1,1,3,3-tetramethylguanidinium dihydrogenorthophosphate
(International Union of Crystallography, 2000)
In the title compound, C 5 H 14 N 3 + H 2 PO 4 ˇ , the cation has a central guanidinium fragment with a planar geometry, as expected for a central C sp 2 atom with a small ...
Article
Role of low-frequency vibrations on sound propagation in glasses at intermediate temperature
(American Physical Society, 2000)
We report measurements of the temperature dependence of the sound attenuation and the fractional change in sound velocity for the glass (G) and orientational-glass (OG) phases of polymorphic ethanol. Strikingly similar ...
Article
Estudio comparativo de técnicas de preparación de muestras para microscopía electrónica de transmisión de recubrimientos cerámicos proyectados por plasma
(2000)
El desarrollo de materiales avanzados, con microestructuras cada vez más complejas, supone un reto constante de desarrollo y aplicación de técnicas que permitan el análisis de la microestructura de forma eficiente. En el ...
Article
Evidence of latent heat in Rb2ZnCl4 commensurate-incommensurate phase transition
(IOP Publishing, 2000-03-27)
The commensurate-incommensurate phase of a Rb2ZnCl4 crystal was studied using a conduction calorimeter. By identifying the contribution of specific heat to transition enthalpy it was possible to show, for the first time ...