Non-monotonic temperature evolution of nonlocal structure-dynamics correlation in CuZr glass-forming

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The structure-dynamics correlations in a nonlocal manner were investigated in CuZr metallic glass-forming liquids via classical molecular dynamics simulations.A spatial coarse-graining approach was employed to incorporate the nonlo-cal structural information of given structural order parameters in the structure-dynamics relationship.It is found that the correlation between structure order parameters and dynamics increases with increasing coarse-graining length and has a characteristic length scale.Moreover,the characteristic correlation length exhibits a non-monotonic temperature evolution as temperature approaches glass transition temperature,which is not sensitive to the considered structure order parameters.Our results unveil a striking change in the structure-dynamics correlation,which involves no fitting theoretical interpreta-tion.These findings provide new insight into the structure-dynamics correlation in glass transition.
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