TY - JOUR
T1 - Mechanisms of Radiation-Induced Viscous Flow
T2 - Role of Point Defects
AU - Mayr, S. G.
AU - Ashkenazy, Y.
AU - Albe, K.
AU - Averback, R. S.
PY - 2003
Y1 - 2003
N2 - Mechanisms of radiation-induced flow in amorphous solids have been investigated using molecular dynamics computer simulations. It is shown for a model glass system, CuTi, that the radiation-induced flow is independent of recoil energy between 100 eV and 10 keV when compared on the basis of defect production and that there is a threshold energy for flow of [Formula presented]. Injection of interstitial- and vacancylike defects induces the same amount of flow as the recoil events, indicating that point-defect-like entities mediate the flow process, even at 10 K. Comparisons of these results with experiments and thermal spike models are made.
AB - Mechanisms of radiation-induced flow in amorphous solids have been investigated using molecular dynamics computer simulations. It is shown for a model glass system, CuTi, that the radiation-induced flow is independent of recoil energy between 100 eV and 10 keV when compared on the basis of defect production and that there is a threshold energy for flow of [Formula presented]. Injection of interstitial- and vacancylike defects induces the same amount of flow as the recoil events, indicating that point-defect-like entities mediate the flow process, even at 10 K. Comparisons of these results with experiments and thermal spike models are made.
UR - http://www.scopus.com/inward/record.url?scp=85038301172&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.90.055505
DO - 10.1103/PhysRevLett.90.055505
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AN - SCOPUS:85038301172
SN - 0031-9007
VL - 90
SP - 4
JO - Physical Review Letters
JF - Physical Review Letters
IS - 5
ER -