%0 Journal Article
%J Physical Review B
%D 2009
%T Structural heterogeneity and medium-range order in ZrxCu100-x metallic glasses
%A Li, M.
%A Wang, C. Z.
%A Hao, S. G.
%A Kramer, M. J.
%A Ho, K. M.
%K alloys
%K ATOMIC PACKING
%K copper alloys
%K GEOMETRY
%K glass structure
%K LIQUIDS
%K metallic glasses
%K model
%K molecular dynamics method
%K molecular-dynamics
%K total-energy calculations
%K transition
%K x-ray diffraction
%K zirconium alloys
%M ISI:000272310900051
%P 184201
%R 10.1103/Physrevb.80.184201
%U ://000272310900051
%V 80
%X Realistic three-dimensional atomistic structures of ZrxCu100-x (x=35,50) bulk metallic glasses are constructed using a combination of x-ray diffraction experiment and computational modeling. A cluster correlation method is developed to analyze the medium-range order in amorphous systems. We show that the glass systems consist of a stringlike backbone network formed by icosahedral clusters and a liquidlike structure filling in the remaining space. These findings are consistent with those obtained from our independent classical molecular-dynamics studies with embedded-atom method potential for ZrCu system. Such a heterogeneous structure provides a fundamental structural perspective of dynamical heterogeneity and glass formation.
%Z 526ROTimes Cited:0Cited References Count:39
%8 11/01
%@ 1098-0121