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oai:uvadoc.uva.es:10324/24462021-07-06T08:33:30Zcom_10324_1159com_10324_931com_10324_894col_10324_1310

González Fernández, David José González Tesedo, Luis Enrique López Rodríguez, José Manuel Stott, Malcolm J. 2013-03-09T17:38:32Z 2013-03-09T17:38:32Z 2004 Physical Review E, vol. 69, n 3 (2004), p.1-14 http://uvadoc.uva.es/handle/10324/2446 10.1103/PhysRevE.69.031205 1 3 14 Physical review E 3 Producción Científica 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. application/pdf eng The American Physical Society info:eu-repo/semantics/restrictedAccess © Todos los derechos reservados Líquidos Dinámica molecular Compresibilidad Microscopic dynamics in the liquid Li-Na alloy: An ab initio molecular dynamics study info:eu-repo/semantics/article http://link.aps.org/doi/10.1103/PhysRevE.69.031205 SI