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Physical Review B
We report the results of first-principles molecular-dynamics simulations for liquid and undercooled eutectic Au 81 Si 19 alloys at various temperatures. Through comparisons between Au 81 Si 19 and Au liquids, we show the strong effects of Si alloying on the atomic-scale structure, namely the occurrence of a well-defined chemical short-range order and the slowing of the formation of icosahedral local motifs as a function of temperature. Such a behavior may explain the stability of the liquiddoi:10.1103/physrevb.81.140202 fatcat:ulqazpuzrrdulcuhaljpb3nzzy