TY - JOUR
T1 - Relating activation of shear transformation zones to β relaxations in metallic glasses
AU - Yu, H. B.
AU - Wang, W. H.
AU - Bai, H. Y.
AU - Wu, Y.
AU - Chen, M. W.
PY - 2010/6/7
Y1 - 2010/6/7
N2 - The mechanisms of plastic deformation of glassy solids and structural origin of β relaxation are two fundamental issues. We provide compelling experimental evidence that the activation of shear transformation zones (STZs) and β relaxations in metallic glasses are directly related, and the activation energy of the β relaxation and the potential-energy barriers of STZs are nearly equivalent. Our results suggest an intrinsic correlation among potential STZs, β relaxation, and the inhomogeneous atomic structure of metallic glasses, which has implications for understanding the deformation mechanism and structural origin of β relaxation in glasses.
AB - The mechanisms of plastic deformation of glassy solids and structural origin of β relaxation are two fundamental issues. We provide compelling experimental evidence that the activation of shear transformation zones (STZs) and β relaxations in metallic glasses are directly related, and the activation energy of the β relaxation and the potential-energy barriers of STZs are nearly equivalent. Our results suggest an intrinsic correlation among potential STZs, β relaxation, and the inhomogeneous atomic structure of metallic glasses, which has implications for understanding the deformation mechanism and structural origin of β relaxation in glasses.
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U2 - 10.1103/PhysRevB.81.220201
DO - 10.1103/PhysRevB.81.220201
M3 - Article
AN - SCOPUS:77956328366
VL - 81
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 0163-1829
IS - 22
M1 - 220201
ER -