Ab initio molecular dynamics simulation of the liquid and amorphous structure of Mg65Cu25Gd10 alloy

R. Gao, Y. F. Zhao, X. J. Liu, Z. K. Liu, X. Hui

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

The liquid and amorphous structures of Mg65Cu 25Gd10 alloy were studied by using molecular dynamics methods within the frame of density functional theory. The generalized and partial pair correlation functions, structure factors, coordination numbers and bond pairs for this alloy were analyzed. It is shown that this alloy exhibit typical characterization of liquid structure at the temperature higher than 750 K, and of amorphous structure with shoulders on the second diffuse peaks of the pair correlation functions curves at room temperature. The local short and medium range ordering tends to be increased with the decrease of temperature. Both the liquid and the amorphous structures are mainly composed of icosahedral type of bond pairs. Perfect and distorted icosahedra can be differentiated from the atomic configuration of the amorphous alloy.

Original languageEnglish (US)
Pages (from-to)65-70
Number of pages6
JournalPhysica B: Condensed Matter
Volume426
DOIs
StatePublished - Jan 1 2013

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this