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Purely dynamical signature of the orientational glass transition

 

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Opened Access Purely dynamical signature of the orientational glass transition
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Author: Jiménez Ruiz, M.
Criado Vega, Alberto
Cuello, Gabriel J.
Cabrillo, C.
Trouw, F. R.
Fernández Perea, R.
Löwen, H.
Department: Universidad de Sevilla. Departamento de Física de la Materia Condensada
Date: 1999-10-04
Published in: Physical Review Letters, 83 (74), 2757-2760.
Document type: Article
Abstract: The dynamics of the freezing transition of the rotator phase crystal of ethanol into its orientational glass phase is monitored by measurements of molecular rotational components in the quasielastic neutron scattering spectrum. We demonstrate that phenomena observed at pico- and nanosecond scales can be mapped onto those shown by a model of infinitely thin hard needles rotating around body-centered-cubic lattice positions. As the model glass transition is of purely dynamical origin, our findings support the idea that the glass transition is purely dynamical and not associated with any thermodynamic phase transition.
Cite: Jiménez Ruiz, M., Criado Vega, A., Cuello, G.J., Cabrillo, C., Trouw, F.R., Fernández Perea, R. y Löwen, H. (1999). Purely dynamical signature of the orientational glass transition. Physical Review Letters, 83 (74), 2757-2760.
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URI: http://hdl.handle.net/11441/62969

DOI: 10.1103/PhysRevLett.83.2757

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