A Possible Mechanism For Atomic Transport in Amorphous Metals
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ABSTRACTThe diffusion process at a temperature just below the glass-transition temperature is studied in a computer model of amorphous Ni81B19. The observed diffusion events cause structural changes that are highly localized and are correlated with low-frequency localized vibrational modes. The excitation of such a mode can result in a “jump”, which is identical to the diffusion event. The jump has a cooperative character involving some tens of atoms and can be of a reversible or of an irreversible nature.
1987 ◽
Vol 93
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pp. 53-66
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2007 ◽
Vol 561-565
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pp. 1371-1374
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2007 ◽
Vol 55
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pp. 2459-2466
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2007 ◽
Vol 471
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pp. 125-129
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1993 ◽
Vol 164-166
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pp. 1239-1242
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2012 ◽
Vol 441
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pp. 169-173
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