Dynamics slowdown in iron liquid

The dynamic properties of iron liquid (Fe) are studied by molecular dynamics (MD) simulation. We trace the evolution of local density fluctuations (LDFs) in Fe liquid over the simulation time and in the 300-2300 K temperature range. The result simulation reveals that atomic diffusion is realized through the LDFs and the high localization LDFs at low temperature in the iron liquid is the cause of the anomalous dynamics slowdown. We find that the diffusion depends on both rate of LDFs and the averaged square displacement of particles Fe as one LDF occurs.

6p blackwidow123 15-06-2018 28 3   Download