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Title: Microscopic dynamics in the liquid Li-Na alloy: An ab initio molecular dynamics study
Authors: González, David J.
González, Luis Enrique
López, José Manuel
Stott, Malcolm J.
Issue Date: 2004
Publisher: The American Physical Society
Description: Producción Científica
Citation: Physical Review E, vol. 69, n 3 (2004), p.1-14
Abstract: We present results for several structural and dynamical properties of the liquid Li1-xNax alloy. The study has been carried out by means of the orbital-free ab initio molecular dynamics method, combined with local ionic pseudopotentials constructed within the same framework. We obtain good agreement with the available experimental data, reproducing accurately, the strong homocoordinating tendencies exhibited by this alloy. The calculated partial dynamic structure factors exhibit clear side peaks whose frequencies, for q<~0.25Å-1, correspond to the hydrodynamic sound dispersion of the binary alloy, whereas for larger q values fast and slow sound modes are identified. The mass ratio in this system, mNa/mLi≈3, is the smallest one so far for which the fast mode is observed.
Keywords: Líquidos
Dinámica molecular
Peer Review: SI
DOI: 10.1103/PhysRevE.69.031205
Publisher Version:
Rights Owner: © Todos los derechos reservados
Language: eng
Rights: info:eu-repo/semantics/restrictedAccess
Appears in Collections:DEP33 - Artículos de revista

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