Abstract
Polymaorphism was recently revealed in metallic glasses (MGs) under high-pressure. The electronic structural evolution of solvent component was confirmed to be essentially responsible for the polyamorphic transition in MGs. In this paper, structural evolutions of Ce68−xLaxAl10Cu20Co2 (x=0, 34, and 68) MGs were investigated by in situ high pressure X-ray diffraction measurements. The effect of composition on pressure-induced polyamorphism in MGs was discussed. The results indicated that polyamorphous in Ce-based MGs is strongly related to the Ce concentration. These results provide new insight for searching for polyamorphous and glass structure in MGs.
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