PHONON LOCALIZATION AND ATOMIC MOBILITY IN AMORPHOUS NI81B19

Authors
VANEE LD THIJSSE BJ SIETSMA J
Citation
Ld. Vanee et al., PHONON LOCALIZATION AND ATOMIC MOBILITY IN AMORPHOUS NI81B19, Journal of non-crystalline solids, 207, 1996, pp. 641-644
Citations number
6
Categorie Soggetti
Material Science, Ceramics
Journal title
Journal of non-crystalline solids → ACNP
ISSN journal
00223093
Volume
207
Year of publication
1996
Part
2
Pages
641 - 644
Database
ISI
SICI code
0022-3093(1996)207:<641:PLAAMI>2.0.ZU;2-7
Abstract
The mechanism of atomic motion in metallic glasses is investigated by means of molecular dynamics simulations. Topologically atypical locati ons in amorphous Ni81B19 are identified from low-frequency localized v ibrational modes. Excitation of such a localized mode induces atomic m otion in a physically relevant manner. In Ni81B19 the motion is of a c ooperative character and involves some tens of atoms.